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Flowers See photo from Haar's Nursery |
Foliage Click on illustration from Kew Herbarium Catalogue to show flower distribution. |
Form See photo from Learn 2 Grow |
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Flowers.
Diascia Photo Album is below this Table. Diascia cordata can be distinguished from other species by two distinct separate yellow windows in the throat of the flower. |
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Plant Name |
Diascia cordata From the Greek "di" (2) and "askos" (sac), referring to the 2 spurs on the flower |
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Common Name |
Twinspur |
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Soil |
Chalk. "It grows best in sandy, loamy soil that is moderately moist to moist." from Hortipedia. |
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Sun Aspect |
Full Sun |
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Soil Moisture |
Dry and Moist |
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Plant Type |
Herbaceous Perennial |
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Height x Spread in inches (cms) |
6 x 20 (15 x 50) |
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Foliage |
Pale Green |
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Flower Colour in Month(s). Fruit |
Spray of Spur-shaped Deep Pink 4 Petal Flower in June-September. Unusually; the flowers have 2 spurs at their back. |
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Comment |
Mat-forming form. Water in dry periods. Dead-head regularly. Pruning Group 14. "Although diascias flower for months in Britain they have a much shorter flowering season in their native land because they are pollinated by a different species of bee: Bees from the genus Rediviva (native to southern Africa) have extra long forelegs, and this allows them to reach the spurs of the flowers in order to collect a fatty oil produced by the glands. The legs of the bee soak up the oil, rather like a sponge, and pollen is transferred to the body of the bee during this process. The flowers are then pollinated and fade. Our native bees have shorter legs and so fail to pollinate the flowers." from The Telegraph. "Exotic ground cover that has aricot flowers which occur Nov-Feb. It has foliage and prefers a part-full sun position in a soil. Height:0.1 to 0.3 Width:0.3 to 0.5" from Dis Delightful Plants in Australia. Available from Dis Delightful Plants in Australia.
Modern Hybrids: Graham Noel Brown in Cobbity, Australia introduced the Sun Chimes series (Available from Shoot in the UK and Goode Greenhouses in America) back in 2004. Flying in from Holland in 2007 came the Flying Colors series (Available from Shoot in the UK and Proven Winners in America), hybridized by Klemm. The Flying Colors series includes Trailing Antique Rose, Trailing Red, Apricot, Appleblossom and Coral. Trailing Antique Rose and Trailing Red, uh, trail, but the others are more upright. From Holland we also have the Picadilly series, which were hybridized by Stemkens in 2007, and include lilac and blue, which I can't wait to see in person! The "red" is usually a dark reddish rose, or a dark rosy red, but we don't mind. The Danzinger Company, in Israel, has come up with 16 new varieties of Diascias in the 'Genta' line using tissue culture. Most have larger flowers, stiffer stems and are more upright than the species. Sygenta Flowers (Diascia barberae - Darla Orange Imp is one of their new Annuals from Cuttings for 2013)is wholesaling 'Genta Light Pink'TM and 'Genta Red'TM to markets in Europe, Africa and the Middle East. I guess it depends on where you are when you find your Diascia. 2011-12 Ball Horticultural Company this year in America and Canada is wholesaling five varieties of D. 'Picadilly' (originally from Stemkens), six of D. 'Romeo' (which is trailing) and five of D. 'Juliet' (an upright variety), and four of D. 'Diamonte' (seed-grown!), for a grand total of 20 diascia cultivars. In the fairly recent past, Ball has also marketed D. 'Whisper' series and the D. 'Wink' series. You can get D. 'Diamonte' at Pase Seeds or Park Seed. And last but not least, Proven Winners marketed ten Diascia varieties in 2011: three from the 'Flying Colors Series' and eight others, including 'Flirtation Orange,' which is the one I am growing this year, and which seems to be very popular. These are available mail-order for customers in the U.S. " from Carrie Lamont. |
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Companions |
Silver-foliaged plants such as Artemesia, lavender and blue Campanulas, Viola cornuta, Gaura, Geranium and Scabiosa 'Butterfly Blue'. Use in the foreground or at the edges of planting areas, or as a container plant spilling over the sides of a pot. Treat as annual. |
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Article from Christine Boulby called National Plant Collection of Diascias:- "NATIONAL PLANT COLLECTION OF DIASCIAS by CHRISTINE BOULBYThis article was first published in PLANTS Issue 2 and should be considered a history of Diascia at the time, a historical reference document. There were some images with the original piece and of course Issue 2 can be downloaded as a complete digital issue.OVER the past decade diascias have earned themselves a place in the perennial border. Introduced by botanists Hilliard and Burtt in the early 1980's, many South African diascia species have only been known to most of Britain's gardening public for about ten years. In 1983, specimens collected by the plant hunting team were turned over to Logan Botanic Gardens and the showiest of them all - Diascia rigescens - was chosen to cover an entire bed for the first time. Visitors were stunned by the beauty of the plants. Soon the gardening world was buzzing about this incredible plant that bloomed for such a long time. My brother William and I were swept off our feet by these plants. Little by little, we searched out species available in the UK. Most of them were shades of pink, except Diascia lilacina , a species with tiny mauve flowers. Its garden value is insignificant - its true value lay in breeding purposes. D. rigescens is perhaps still the most eye-catching diascia around, but it is not reliably hardy in most parts of the UK. Two commonly available species which return year after year are D. fetcaniensis and D. integerrima. Both perform best in full sun, and the former likes to be in moist conditions if possible, but obliges even when kept on the dry side. D. integerrima which occurs in mountain crevices in the wild will withstand some quite dry conditions. Some species which we thought were not in the UK such as D. personata have turned out to be here, but under corrupted names. One was found with the name D. pentandra on it. There was no such species,and it has since been positively identified as D. personata. Similarly, there has been much mis-labelling of D. barberae and D. cordata, two species long claimed to be here by various nurseries. In most cases, D. cordata, when purchased, has turned out to be D. barberae. The real D. cordata is distinguished by its long outwardly spreading spurs and two distinct yellow 'windows' in the throat of the plant. It is a very pale pink and has a trailing habit, often reaching a length of three feet.. Excitement about new diascias doesn't end with the species. Over the past few years a number of new and exciting cultivars have been introduced. Most of them are the work of one man, Hector Harrison, and some of them are surviving the rigours of British winters. Hector, of Appleby in South Humberside, has created some of the most spectacular new diascias which are now in cultivation. Those thought to be hardy include D.'Jacqueline's Joy'; D. 'Joyces Choice'; D. 'Lady Valerie' and D. 'Lilac Belle'. His latest developments have been with Diascia mollis. It was brought back after a field trip to South Africa by Derry Watkins of Special Plants. Diascia mollis has a very prostrate habit, growing as ground cover over very large areas from a single plant, with the familiar dark pink flowers proliferating from stems that measure more than two feet in length. It is not very pretty, and has little garden value, but Hector spotted the potential of breeding it with other plants already in his possession. The vigour of the plant was combined with the flower power of other diascias and last autumn, he produced a new range of cultivars. One of those trial plants - Diascia 'Coral Belle' - introduced a brand new colour to our known diascia collection. It combines the vigour of D. mollis with the now familiar salmon pink colour of many of his hybrids. It has a compact habit and luscious, dark green, shiny foliage that shows the deep coral flowers off to best advantage. Another successful cross of D.mollis this time with D. 'Hopley's Apricot' resulted in D. 'Derry's Delight' which has masses and masses of bright pink bloom which does well as a front-of-border plant, or serves as a focal point in planters or hanging baskets, with palm-shaped shiny mid-green foliage on long stretching stems. Hector has devoted enormous amounts of time and patience in his mission to create diascias that are reliably hardy, have new colour shades and larger, more prolific blooms. Introductions made two and three years ago are still finding their way into the hearts and hands of gardeners. D. 'Lady Valerie' (right) is the result of crossing D. 'Hopley's Apricot' with D. 'Salmon Supreme' to achieve a decidedly orange shade to his apricot collection. Grown in compact mounds of healthy foliage, it forms large clumps which eventually spread out as the new growth appears from the centre. It shows off very well in hanging baskets, but can also provide a focus at the front of a perennial border. D. 'Apple Blossom' was also recently developed, and despite having been around only a very short time, is receiving much attention. The blooms are the palest apple-blossom pink on a sturdy plant with an upright habit. D. 'Emma' has been an important part of the National Collection for three years now. Its flowers are the familiar dark pink colour, but the plant grows to a height of about 24 inches before it eventually requires support. Unsupported, it flops forwards and blooms constantly from June onwards, delivering colour for three months or more, It is proving to be more reliably hardy than many of the other diascias. It was a successful cross between D. patens and another mystery diascia. We will never know its parentage because the germinating seeds and their labels were confused when they fell off the potting bench in Hector's greenhouse! Hardiness continues to be the main concern for the future success of diascias, and extensive trials for hardiness are being carried out this year by Harlow Carr Botanic Gardens. D.'Sarah' (right) sports an almost purple flower which fades to a blue shade as it ages. It grows on foliage which is the deepest green, and may well become another hanging basket favourite in coming seasons. D. 'Joyces Choice', is now a firm favourite and one of its successors, D. 'Sydney Olympics' is set to surpass even her flowering ability. Variegated diascias are now becoming available too. D. 'Katherine Sharman' has a cream variegated leaf, but the plant is not easy to grow and does not have very eye-catching blooms. D. 'Lilac Lace' also has a slight cream variegation in its foliage, but its blooms are quite small like those of one of its parents D. lilacina. A more promising variegated diascia is D. 'Rosie' (left) found by myself as a sport on D. 'Ruby Field' two years ago. This one has yellow variegated leaves and is more robust than the other two plants. It has not yet been put into distribution. With so many new diascia cultivars to look forward to, we will also be looking forward to the results of the hardiness trials being conducted by both Wisley and Harlow Carr, the results of which are likely to determine which diascias become worthy of the RHS Award of Merit! Christine Boulby was, in 1995 when this article first appeared in Issue 2 of PLANTS magazine, with her brother William, the guardian of the National Collection of diascias. Contact for the reference collection is William Boulby, Church View Cottage, Main Street, Barmby Moor, Nr York, N. Humberside YO4 5EF. " |
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Topic
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STAGE 4C CULTIVATION, POSITION, USE GALLERY
Cultivation Requirements of Plant |
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Outdoor / Garden Cultivation |
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Indoor / House Cultivation |
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Cool Greenhouse (and Alpine House) Cultivation with artificial heating in the Winter |
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Conservatory Cultivation with heating throughout the year |
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Stovehouse Cultivation with heating throughout the year for Tropical Plants |
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Sun Aspect |
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Soil Type |
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Soil Moisture |
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Position for Plant |
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Ground Cover 0-24 inches (0-60 cms) |
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Ground Cover 24-72 inches (60-180 cms) |
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Ground Cover Over 72 inches (180 cms) |
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1, 2, |
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Use of Plant |
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STAGE 4D Plant Foliage |
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Flower Shape |
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Number of Flower Petals |
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Flower Shape - Simple |
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Flower Shape - Elaborated |
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Natural Arrangements |
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STAGE 4D |
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Form |
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STAGE 1
Fragrant Plants adds the use of another of your 5 senses in your garden:- |
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STAGE 2 Fan-trained Shape From Rhododendrons, boxwood, azaleas, clematis, novelties, bay trees, hardy plants, evergreens : novelties bulbs, cannas novelties, palms, araucarias, ferns, vines, orchids, flowering shrubs, ornamental grasses and trees book, via Wikimedia Commons |
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Ramblers Scramblers & Twiners by Michael Jefferson-Brown (ISBN 0 - 7153 - 0942 - 0) describes how to choose, plant and nurture over 500 high-performance climbing plants and wall shrubs, so that more can be made of your garden if you think not just laterally on the ground but use the vertical support structures including the house as well. The Gardener's Illustrated Encyclopedia of Climbers & Wall Shrubs - A Guide to more than 2000 varieties including Roses, Clematis and Fruit Trees by Brian Davis. (ISBN 0-670-82929-3) provides the lists for 'Choosing the right Shrub or Climber' together with Average Height and Spread after 5 years, 10 years and 20 years. |
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STAGE 2
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STAGE 4D Trees and Shrubs suitable for Clay Soils (neutral to slightly acid) Trees and Shrubs suitable for Dry Acid Soils Trees and Shrubs suitable for Shallow Soil over Chalk Trees and Shrubs tolerant of both extreme Acidity and Alkalinity Trees and Shrubs suitable for Damp Sites Trees and Shrubs suitable for Industrial Areas Trees and Shrubs suitable for Cold Exposed Areas Trees and Shrubs suitable for Seaside Areas Shrubs suitable for Heavy Shade Shrubs and Climbers suitable for NORTH- and EAST-facing Walls Shrubs suitable for Ground Cover Trees and Shrubs of Upright or Fastigiate Habit Trees and Shrubs with Ornamental Bark or Twigs Trees and Shrubs with Bold Foliage Trees and Shrubs for Autumn Colour Trees and Shrubs with Red or Purple Foliage Trees and Shrubs with Golden or Yellow Foliage Trees and Shrubs with Grey or Silver Foliage Trees and Shrubs with Variegated Foliage Trees and Shrubs bearing Ornamental Fruit Trees and Shrubs with Fragrant or Scented Flowers Trees and Shrubs with Aromatic Foliage Flowering Trees and Shrubs for Every Month:- |
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HERBACEOUS PERENNIAL GALLERY PAGES |
FOLIAGE COLOUR |
SEED/FRUIT COLOUR FLOWER BED PICTURES |
Starting with the data in Garden Style followed by Infill Plants, then you can refine your plant list from the remaining galleries in this cell:- |
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PERENNIAL |
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HERBACEOUS PERENNIAL Gallery with 7 Flower Colours (Red, Pink and Purple on same page) per Month in Colour Wheel. Click on Black or White box in Colour of Month. |
HERBACEOUS PERENNIAL INDEX -
The variety of plants that can be used in alpine gardening is obviously very large and very bewildering at first approach. With a view to easing the task of selection here are lists The standard potting and seed-soil recipes from The Propagation of Alpines by Lawrence D. Hills are at the bottom of the page on Alpine - Sink and Trough Gardens. |
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To compare |
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with 7 Flower Colours - Blue, White, Yellow, Green for Unusual, Red, Orange and Pink per Month in Colour Wheel below. Click on Black or White box in Colour of Month. |
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The Herbaceous Perennials in this gallery are not compared with other Herbaceous Perennials in the HERBACEOUS PERENNIAL GALLERY, but they are compared with each other in the Mixed Border Garden Design Gallery using the above 7 Flower Colours per month Wheel. FLOWER COLOUR RANGE IN 71 PARTS OF RHS WISLEY MIXED BORDER DURING After reviewing the situation in the |
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Blue = |
Green = |
Red = |
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Brown = |
Blue = |
Green = |
Red = |
Black = |
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Wet Soil |
Moist Soil |
Dry Soil |
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Flowering Months range abbreviates month Click on centre of thumbnail to move from this page to the The Comments Row of that Plant Description |
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Herbaceous Perennial |
Flowering Months |
Height x Width in inches (cms) - 1 inch = 2.5 cms, 12 inches = 1 foot = 30 cms, 36 inches = 3 feet = 1 yard = 90 cms, 40 inches = 100 cms |
Flower Thumb-nail |
Herbaceous Perennial Flower Thumbnail |
Flowering Months |
Height x Width in inches (cms) - 1 inch = 2.5 cms, 12 inches = 1 foot = 30 cms, 36 inches = 3 feet = 1 yard = 90 cms, 40 inches = 100 cms |
Flower Thumb-nail |
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Alpine Herbaceous Perennial if Text Background is Blue |
Alpine Herbaceous Perennial if Text Background is Blue |
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Evergreen or Semi-Evergreen Perennial |
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A |
A |
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May, June, |
48-60 x 24 |
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96 x 40 |
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June, July, August, |
36 x 24 |
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48 x 24 |
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June, July, |
48 x 18 |
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40-60 x 20-40 (100-150 x 50-100) |
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June, July, |
36 x 18 |
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June, July, |
60 x 40 |
Creamy-White. |
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June, July, |
48 x 24 |
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32-39 x 24 (80-100 x 60) |
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May, June, |
36 x 24 |
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July, August, September |
64 x 16 |
Violet-Blue. |
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June, July, |
20 x 15 |
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August, September |
96 x 40 |
Dark Blue. |
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June, July, August, |
28 x 18 |
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July, August |
40-60 x 4-20 (100-150 x 10-50) |
Violet-Blue. |
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June, July, August, |
36 x 16 |
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24-48 x 18-24 |
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June, July, August, |
36-42 x 12 |
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48 x 36 |
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June, July, |
16-48 x 12 |
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70 x 40 |
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July, August, |
42 x 36 |
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August, September, October |
80 x 24 |
Creamy-White. |
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July, August |
40 x 80 |
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60 x 24 |
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December, January, |
18 x 30 |
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40 x 20 |
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July, August, |
30 x 18 |
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60 x 24 |
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June, July |
20 x 18 |
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18 x 12 |
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July, August, |
24 x 24 |
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July, August |
36 x 20 |
White. |
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July, August, |
30 x 24 |
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32 x 24 |
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June, July |
72-96 x 24 |
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36 x 16 |
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June, July |
72-96 x 24 |
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40 x 16 |
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June, July |
72-96 x 24 |
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July, August, September, October |
48 x 24 |
White. |
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June, July |
72-96 x 24 |
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24 x 16 |
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June, July |
72-96 x 24 |
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20-40 x 4-20 |
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June, July |
72 x 24 |
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28 x 24 |
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June, July, |
4 x 20 |
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July, August, September |
72 x 60 |
Pinkish-Lavender |
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June, July, |
16 x 12 |
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60-100 x 40-60 |
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July |
24 x 230 |
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20-40 x 20-40 |
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June, July, |
36 x 24 |
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August, September, October |
24-40 x 24-40 |
Pale Pink. |
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August, September, |
36 x 24 |
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40-60 x 20-40 |
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Pink - July, August or |
24 x 16 |
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60 x 24 |
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July, August |
36 x 18 |
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July, August, September |
60 x 24 |
Cream. |
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July, August |
25 x 16 |
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August, September |
24 x 24 |
Yellowish-Brown. |
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May, June |
16 x 18 |
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July, August, September |
60 x 18-24 |
Pink. |
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May, June |
30 x 12 |
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September, October |
12-36 x 12-36 |
White. |
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June, July, August, September, October |
36 x 12 |
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July, August, September, October |
4-20 x 4-20 |
Red and White. |
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July, August, |
28 x 16 |
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September, October |
52 x 24 |
Mauve-Pink. |
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August, September, |
12 x 12 |
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September, October |
60 x 16-24 |
Lilac-Blue. |
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July |
30 x 18 |
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August, September |
12-18 x 8-12 |
Purple-Pink. |
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August, September |
8-12 x 10 |
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45 x 78 |
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June |
20-24 x 12 |
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September, October |
48 x 36 |
Purple-Red. |
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July |
24 x 18 |
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August, September, October, November |
48-60 x 24 |
Pale Violet. |
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July, August |
39 x 24 |
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24 x 16 |
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August, September |
48 x 24 |
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B |
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June, July |
18-24 x 18 (45-60 x 45) |
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40-60 x 20-40 |
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July, August |
24 x 18 |
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C |
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July, August |
8-18 x 12 |
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60 x 24 |
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June, July |
24 x 18 |
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48 x 20 |
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B |
24-36 x 18-30 |
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April, May |
12-18 x 24 |
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24 x 12 |
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April, May |
12-18 x 18 (30-45 x 45) |
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June, July |
60-100 x 40-60 |
White. |
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June, July, August, |
24 x 18 |
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20-40 x 4-20 |
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C |
24 x 24 |
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April |
9 x 12 |
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August, September, October |
35 x 23 |
Opening Orange fades to Pink. |
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June, July, |
2 x 12 |
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36 x 18 |
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June, July, |
36-48 x 24 |
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June, July, August, September |
60 x 48 |
Purple. |
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June, July, |
24 x 24 |
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D |
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July, August, September, |
36 x 24 |
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May, June, July, August |
80 x 40 |
Creamy-Yellow-Green. |
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D |
E |
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July, August, September |
60 x 18 |
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18-24 x 14 |
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Links to the other 22 Diascia Pages are in Alpine / Herbaceous Perennial Index D Page |
June, July, August, |
6 x 20 |
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40 x 18 |
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May, June |
18 x 30 |
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28 x 16 |
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May, June |
24-36 x 20 |
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39 x 39 |
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E |
July, August |
18-48 x 24 |
Bright Blue. |
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July, August, September |
30-48 x 18 (75-120 x 45) |
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40-60 x 20-40 |
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F |
12-60 x 24 |
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June |
6 x 6 |
White |
88 x 40 |
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G |
Eupatorium maculatum (Atropur-pureum Group) 'Riesen-schirm' |
July, August, September |
80 x 80 |
Pink-Purple. |
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August, September |
24 x 18 |
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August, September, October |
60-100 x 20-40 |
Purplish-Pink. |
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June, July |
32 x 18 |
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24 x 20 |
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June, July |
12 x 12 |
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F |
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July, August, |
4 x 12 |
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60-100 x 20-40 |
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July, August |
60 x 72 |
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July, August |
72 x 18 |
Sulphur-Yellow. |
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H |
60 x 20 |
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September, October, |
60 x 18 |
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G |
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August |
48 x 30 |
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48 x 36 |
White. |
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August |
20 x 36 |
Deep Violet |
48 x 32 |
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July |
36 x 48 |
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36 x 36 |
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K |
Geranium 'Rozanne' |
24 x 16 |
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September, October |
24 x 18 |
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24 x 18 |
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July, August |
36 x 24 |
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24 x 20 |
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September, October |
30 x 18 |
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H |
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L |
July, August, September |
72 x 24 |
Yellow. |
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May, June, |
24 x 12 |
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June, July, August |
36 x 24 |
Brick Orange Red. |
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April, May, |
12 x 18 |
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38-51 x 16 |
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August, September, |
48 x 36 |
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20-40 x 4-20 |
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June, July, |
3 x 6 |
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72 x 24 |
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June, July |
12 x 12 |
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20-40 x 4-20 |
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June, July, August, |
36 x 12 |
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September, October |
96-120 x 12-36 |
Yellow rays and dark Brown disc. If it flowered in Sep-Oct, I missed taking their photos |
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April, May, |
48 x 24 |
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80 x 48 |
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May, June |
12 x 18 |
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80 x 18 |
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July, August |
36 x 24 |
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23 x 30 |
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M |
20 x 40 |
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May, June, |
12 x 36 |
Yellow with |
30 x 24 |
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May, June, |
12 x 24 |
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32 x 40 |
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P |
18 x 12 |
Cream. |
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June, July |
36 x 36 |
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26 x 20 |
Pale Pink. |
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May, June |
36 x 36 |
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June, July |
30 x 30 |
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72 x 36 |
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May, June |
16 x 16 |
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72 x 60 |
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Paeonia |
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23 x 18 |
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May, June |
6 x 4 |
Pinkish-blue |
J, K |
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May, June |
... |
Yellow, Purple, Red, Pink |
32 x 24 |
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May, June |
6 x 5 |
Pink |
40 x 20 |
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May, June |
6 x 3.5 |
Purple |
August, September |
120 x 48 |
Orange-red fades to yellow. |
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May, June |
6 x 3 |
Red |
June, July, August, September |
48 x 32 |
Lemon-Yellow. |
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May, June |
6 x 5 |
White |
July, August, September |
40 x 30 |
Light Scarlet fades to Yellow. |
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May, June |
6 x 3 |
Yellow |
June, July, August |
36 x 24 |
Orange top with Ivory-White bottom. |
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L |
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June, July, |
12 x 6 |
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August, September, October, November |
60 x 40 |
White. |
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May, June, |
36 x 24 |
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36 x 36 |
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May |
4-8 x 8 |
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48 x 48 |
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S |
30 x 18 |
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September |
18 x 18 |
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Lychnis coronaria 'Gardener's World' |
24 x 10-12 |
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D |
40 x 24 |
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May |
24-48 x 48 |
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60 x 20 |
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36 x 18 |
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M |
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100 x 60 |
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June, July |
88 x 40 |
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June, July |
80 x 48 |
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June, July, August |
55 x 55 |
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June, July, August, September |
24 x 18 |
White. |
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July, August, September |
60 x 20 |
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June, July, August |
36 x 15 |
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N |
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June, July, August, September |
36 x 24 |
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June, July, August |
48 x 36 |
Lilac-Pink. |
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June, July, August, September |
24 x 20 |
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O |
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June, July, August, September |
18 x 24 |
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July, August, September, October |
18 x 18 |
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P |
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July, August, September |
70 x 24 |
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July, August, September |
70 x 24 |
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June, July, August, September |
40 x 30 |
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July, August, September, October |
48 x 48 |
Bright Red. |
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July, August, September, October, November |
18 x 18 |
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June, July, August, September |
50 x 60 |
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Persicaria amplex-icaulis taurus |
July, August, September, October |
40 x 28 |
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July, August, September |
20 x 40 |
White. |
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June, July, August |
80 x 40 |
Pale Yellow. |
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May, June, July, August, September |
36 x 30 |
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July, August |
40 x 24 |
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July, August, September |
30 x 20 |
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July, August, September |
30 x 30 |
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July, August, September |
36 x 24 |
Lilac. |
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July, August, September |
18 x 14 |
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July, August, September |
24 x 16 |
White. |
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July, August, September |
40 x 20 |
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Dear Mr C H Garnons-Williams, Tony Dickerson Horticultural Advisor Above email sent by the RHS on 13 September 2013 - plant label in Mixed Border bed still not changed by 23 November 2013. |
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July, August, September |
30 x 16 |
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July, August, September |
30 x 30 |
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July, August, September |
40 x 32 |
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July, August, September, October |
36 x 24 |
Red. |
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July, August, September |
24 x 24 |
Blue-Purple. |
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July, August, September |
36 x 12 |
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June, July, August, September |
24 x 18 |
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June, July, August |
16 x 12 |
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June, July, August |
16 x 12 |
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Q, R |
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August, September, October |
24 x 18 |
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June, July, August, September |
80 x 36 |
Yellow. |
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S |
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June, July, August |
30 x 24 |
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May, June, July, August, September |
18 x 18 |
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July, August, September, October |
24 x 20 |
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September, October |
20 x 16 |
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August, September |
40 x 20 |
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August, September, October |
12 x 12 |
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August, September, October, November |
18 x 18 |
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August, September |
18 x 18 |
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September, October, November |
24 x 18 |
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June, July, August |
32 x 24 |
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August, September, October |
60 x 32 |
Yellow. |
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June, July, August, September |
18 x 24 |
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June, July, August, September |
20 x 28 |
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August, September, October |
48 x 24 |
Violet-Blue. |
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June, July, August, September |
32 x 18 |
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T |
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June, July, August |
94 x 23 |
Lavender. |
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June, July, August |
59 x 23 |
Purple-Pink. |
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June, July |
48 x 48 |
Sulphur-Yellow. |
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June, July, August |
72 x 36 |
Purple-Pink or Lavender. |
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U, V |
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August, September, October |
60 x 18 |
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June, July, August, September, October |
24 x 16 |
Purple or Magenta. |
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June, July, August, September |
36 x 24 |
Pale Purple/ Lavend-erish Lilac. |
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June, July, August, September |
60 x 24 |
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July, August, September |
60 x 36 |
Pink Lavender/ Lilac. |
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July, August |
40 x 20 |
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July, August, September |
60 x 18 |
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June, July |
42 x 20 |
Lilac/ Pale Blue. |
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July, August, September |
60 x 26 |
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W, XYZ |
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May, June, July |
18 x 14 |
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Site design and content of this table copyright ©July 2009. Page structure amended December 2012. Colour Wheel clarified January 2013. Feet changed to inches (cms) July 2015. Herbaceous Perennial Menu Table changed and Index Pages added June 2017. Chris Garnons-Williams. Site design and content for Mixed Border Herbaceous Gallery copyright ©March 2013. Chris Garnons-Williams. DISCLAIMER: Links to external sites are provided as a courtesy to visitors. Ivydene Horticultural Services are not responsible for the content and/or quality of external web sites linked from this site. |
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HERBACEOUS PERENNIAL FLOWER SHAPE - |
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Number of Flower Petals |
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Flower Shape - Simple |
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Flower Shape - Elabor-ated |
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Natural Arrange-ments |
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Herbaceous Perennial Name Index The respective flower colour and thumbnail, months of flowering, form, height and width, foliage colour and thumbnail, use and comments are in the relevant index page Evergreen Perennial Name Index |
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UK Peony Index :- |
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Perennials & Ephemerals chapter of Plants for Dry Gardens by Jane Taylor. Published by Frances Lincoln Limited in 1993. ISBN 0-7112-0772-0 for plants that are drought tolerant. |
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Rock |
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Perennials for Ground Covering in Shade and 3 |
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Colour All The Year in My Garden by C.H. Middleton. Published by Ward, Lock & Co. for culture. Perennials The Gardener's Reference by Susan Carter, Carrie Becker and Bob Lilly. Published by Timber Press in 2007 for plants for Special Gardens. It also gives details of species and cultivars for each genus. |
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Herbaceous Perennial Form |
Prostrate or Trailing |
Cushion or Mound-forming |
Spreading or Creeping |
Stemless. Sword-shaped Leaves |
Erect or Upright |
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Back of Border, Alley, and Too Tall for Words Special Garden |
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Herbaceous Perennial in Soil |
Clay + |
Peat + |
Any + |
+ Herbac-eous Perennials in Pages in Plants |
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Peony Use |
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Diascia Photo Album - this site is no longer available and the last update was on 8 February 2001 (this info was found on 2 March 2021). "I hope these pictures will help you identify the diascia you have. They are sometimes close-ups, sometimes long shots and most are scanned from photos or slides. They have been taken by my brother William or me unless otherwise credited. I aim to give a botanical description based on the writings of Hilliard & Burtt and Dr Kim Steiner in time." from Christine Boulby. |
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Diascia |
Description |
Diascia 'Acklington' |
Bred by Christine Boulby. Dark red flowers. I thought I'd lost it but it survived here a winter so I gave it a name. |
Diascia aliciae |
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Diascia 'Alicecap' |
Cultivar bred by Dr Kim Steiner. Bushy habit, pale pink flowers over a very long period. One of the most hardy hybrids in our collection. Resistant to virus. |
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Cultivar bred by Hector Harrison. Upright habit, red open flowers in abundance. |
Diascia 'Appleby Apricot' |
Bred by Hector Harrison and one stand of it has lasted in tact for five winters here in Northumberland. One of the hardiest apricots. |
Diascia austromontana |
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Diascia 'Bella' |
Cultivar by Christine Boulby. Mid-pink flowers and long trailing habit. |
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Protected by Plant Breeders Rights. Variegated version of Diascia 'Ruby Field'. Foliage edged in yellow. Trailing habit, good in baskets. |
Diascia 'Christabel' |
Bred by Hector Harrison. Has huge pale pink flowers in profusion all summer long. |
Diascia 'Coral Belle' |
Bred by Hector Harrison and Protected by Plant Breeders Rights. The only coral coloured diascia in distribution. Orangy-red flowers atop rich deep green foliage. Looks good in hanging baskets. |
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Can be distinguished from other species by two distinct separate yellow windows in the throat of the flower. |
Diascia 'Doreen' |
Deep reddish purple flowers and a very prostrate habit. Found in my garden two years ago and named for my mum. |
Diascia 'Eclat' |
Seen here juxaposed against a penstemon. Lovely big red flowers. Not as long flowering as some other species |
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Flowers have a 'moustache' of dark glands in a straight line on the lower lobe directly under the stamens |
Diascia fetcaniensis growing through a join in a retaining wall at Cragside, Rothbury |
This picture included to show the determination of this species. Its stolons will penetrate the tiniest cracks and roam up to three feet. |
Diascia 'Harry' |
Bred by Christine Boulby and named for my husband and best friend, Harry. Lime green foliage and reddish flowers. Bushy habit. |
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This plant was one of Hector's first crosses and is named for him. He had had it in his garden several years before we were shown it, so it has stood the test of time. Bushy habit. |
Diascia 'Helvellyn' |
Pale pink flowers on nice shiny green foliage. Found by William in a garden in Barmby Moor at a house called 'Helvellyn'. |
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Bred by Hector Harrison using D. integerrima 'Blush' and other plants. Has a nice neat bushy habit and lovely white flowers. |
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White form of Diascia integerrima. Best grown in the garden where it will populate a large area over two to three years. Flowers later in the season (July/August here). Will tolerate the driest of dry places and has survived temperatures as low as -10C here in Northumberland. |
Diascia 'Jacqueline's Joy' |
An early cultivar bred by Hector Harrison. Has lovely racemes of mauve flowers. Bushy habit. Very suitable for hanging baskets. |
Diascia 'Jane' |
Bred by Christine Boulby. Pale mauve/pink flowers in abundance above mid-green foliage. Prostrate habit. |
Diascia 'Katherine Sharman' |
We thought this plant had disappeared but it made a comeback in 2000. It is thought to be a sport of D. 'Ruby Field' and has olive green foliage edged creamy white. Not a very sturdy plant. |
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Bred by Hector Harrison. Has lovely large pale orange flowers and grows very well in containers. |
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Bred by Hector Harrison and introduced the same year as D. 'Lilac Belle'. Small dark green leaves with loads of little lilac flowers all summer. Good in baskets. |
Diascia 'Lilac Gem' |
Bred by Hector Harrison. Upright habit. Palest lilac flowers from July onwards. Hardier than most of the mauves and forms a neat clump up to 15 inches in circumference. |
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Origin unknown. Bright pink flowers on nice deep green foliage. Good in baskets. |
Diascia 'Louise' |
Bred by Hector Harrison. Very wide peach flowers on fresh green foliage. Upright habit. Does well as a spot plant at the front of a border. |
Diascia 'Lucy' |
Bred by Hector Harrison. Easily distinguished from other cultivars by a terminal flower on a raceme that is a buttercup-shaped flower - ie it does not have spurs or a 'throat'.Very jolly apricot flowers.Neat grower and good as spot plant in front of border. |
Diascia 'Megelvar' |
Bred by Hector Harrison. Nice apricot flowered diascia with neat habit and strong dark foliage. |
Diascia mollis |
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Diascia patens |
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Diascia platbergensis |
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Diascia 'Pink Panther' |
Origin unknown. Pale baby pink flowers atop dark green foliage. Neat habit. |
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Bred by Hector Harrison and protected by Plant Breeders Rights. One of the reddest flowered diascias around, and on some of the deepest green foliage it is a stunner. Survives a good deal of dryness, and ideal for baskets. |
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Distinguished from other species by a yellow 'median keel' of glands on the lower lobe of the flower. This photo shows its with Cistus ladanifer. A lovely combination. |
Diascia rigescens 'Anne Rennie' |
Similar to above but flowers a slightly paler shade and carried in rather more loose racemes. |
Diascia rigescens x lilacina |
One of Hector's earliest crosses and given to Blooms of Bressingham. Nice mauve flowers and good foliage. Prostrate habit. Good in baskets but its a bit of a thug |
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Bred by John Kelly and introduced in 1971. Although he gave details of the cross he made to create it, we are not sure of the species he actually had due to name problems.It has nice blousy flowers on prostrate foliage and has been used in alpine beds for many years in the UK. |
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Bred by Rupert Lambert. Plant has upright habit and reddish flowers. |
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Bred by Hector Harrison. When i first saw it I was at Beth Chatto's gardens in Cambridgeshire. One of the first apricot coloured diascias to appear on the market in the UK and has been popular ever since. |
Diascia 'Selina's Choice' |
Bred by Hector Harrison. Plant has a very neat habit. Apricot flowers in abundance and looks great as a hanging basket. |
Diascia 'Tiny Tom' |
Bred by Hector Harrison.Tiny foliage and interesting pinky mauve flowers, this is one of the smallest and neatest diascias I've seen. |
Diascia trials at Appleby, North Lincs |
Hector's hardiness trials take place every year in his search for good garden-worthy plants. |
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Bred by Hector Harrison and protected by Plant Breeders Rights. Although this diascia is one of his first successes, it remains a firm favourite of mine. Has tight purple racemes of flowers on very lush dark green foliage. Superb in hanging baskets. |
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Diascia vigilis 'Jack Elliott' |
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Diascia 'William' |
Bred by Hector Harrison and named for my brother William. Has mid-pink flowers on lush green foliage. We have lost this one, if you have it we'd love to hear from you! |
Latest update 13 March 2001 of above Diascia Photo Album Christine Boulby Copyright © 2001 All rights reserved |
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"Their common name is twinspur, in reference to the two (usually downward-pointing) spurs to be found on the back of the flower. These help to distinguish them from the similar (and closely related) genera Alonsoa and Nemesia. The spurs contain a special oil, which is collected in the wild by certain species of bees that appear to have coevolved with the plants, as they have unusually long forelegs for collecting the oil.
"Diascias are sun-loving plants, but enjoy fertile rather than dry, poor soil. The cushion-forming types can get straggly so cut them back in late April and late August to keep them compact.
"Diascia is a natural for containers. You can fill an entire container with one variety or use a diascia plant as your spiller, in a mixed container. Diascia also makes a lovely edging plant and will elegantly flop over sidewalks and walls or throughout rock gardens. |
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Deer's primary defense is their sense of smell. When a garden has a lot of highly scented plants, the deer have trouble smelling predators and they realize that they are more defenseless. So use lots of fragrant herbs especially larger ones like Perovskia - Russian Sage and Nepetas that release their strong scent if the deer brush against them. Also, Deer do not like grazing extremely low, or too high. Shrubs and trees with foliage 3-5 feet or higher will be less likely to have deer damage." |
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"Diascias often have a spreading, suckering habit. Their upright or sprawling stems are lined with pairs of small, toothed leaves, varying from heart-shaped to thread-like. The slender stems are topped with clusters of open-centred, five-lobed flowers 1.5-2cm across, with two backward-pointing spurs — and because of this, Diascia is also known as twinspur. At the base of the upper two lobes are two yellow windows, often almost merging into one. Diascia is often confused with Nemesia, which can be distinguished by having just one spur. The flowers of most species come in shades of rose-pink, but the cultivars now available encompass lilacs, deep reds, salmons, oranges and white. The long flowering season is one of the main attractions of diascias. Plants rarely set seed in the UK because of the climate and the lack of suitable insect pollinators, and this helps to prolong flowering. Young, vigorous plants produce the best displays. When flowering ceases, most diascias can be encouraged to flower again if trimmed back and given extra fertiliser and water. Diascias grow well in semi-shade but flower better in full sun. In well-drained soil, they will survive several degrees of frost, although plants often look miserable in cold weather. They vary in their hardiness. D. barberae, D. fetcaniensis and D. integerrima Award of Garden Merit (AGM) seem to be the hardiest of the species, with D. ‘Appleby Apricot’, D. ‘Ice Cracker’ and D. barberae ‘Ruby Field’ AGM considered the hardiest cultivars. When diascias first became popular, beginning with the appearance of ‘Ruby Field’ in the 1970s, they were viewed as perennials on the borderline of hardiness. Now it is mainly as plants for containers that their popularity has grown, with series such as Sun Chimes, Wink and Whisper introduced specifically for hanging baskets. The neater forms are also ideal at the front of borders and trailing types look good billowing over a low retaining wall.
New cultivars are introduced every year and these increasingly tend to have flowers close to the mat of foliage rather than held on upright stems high above the leaves.
Things to watch out for include aphids, which may infest young shoots. Slugs and snails can also be a problem and — if the conditions are poor — diascias can be susceptible to Botrytis. What the specialists say Christine Boulby, Diascia National Collection Holder, Northumberland “These are such charming plants and people do tend to fall in love with them easily. Some are perennials that tend to get cut short by our winters, even mild ones, so you would think they were annuals. “To succeed with diascias you should give them a sandy, free-draining soil, which is exactly the sort of conditions they endure in their native South Africa. “Our National Collection, although in Northumberland, is only a mile from the coast so we do not get too many frosts. This suits Diascia very well, and we suffer relatively few winter losses. “The plants have been marketed by the trade over the past decade or so as ‘patio’ plants, and so you will mostly see them growing as annuals in pots and hanging baskets. In a border situation, however, they can be very impressive plants, especially if they are allowed to spread their stems in between and through neighbouring shrubs. “‘Ruby Field’ is an excellent form and is special as it was one of the originals. D. integerrima Award of Garden Merit (AGM) is a hardy, wiry plant, with pink flowers from June to October, requiring little attention. Another excellent form is D. rigescens AGM. Although it is a bit tender, it is a good ‘doer’ and makes an important statement in the garden.” Stuart Lowen, marketing manager, Ball Colegrave, Oxfordshire “Diascia is susceptible to Botrytis, so avoid high humidity and wet foliage. When the plants are young, allow the media to dry slightly between watering. “The D. Whisper series is great for 12cm pots, patio containers and hanging baskets. The D. Wink series offers plants with a compact habit, with a great performance in large containers. They need a well-drained, disease-free, soil-less medium, ideally with a media pH of 5.6-6.0. “The best way to control the growth of Diascia is to grow the crop cool, provide bright light and apply moderate, regular water stress to promote flowering and reduce unwanted vegetative growth. Pinch plants back seven to 10 days after transplanting to improve basal branching. For a larger basket or container a second pinch can be applied.” In practice Peter Jackson, director, Scotsdale Garden Centre, Cambridge “We plant up a low dish of diascias for the period when they are at their best, and this works very well to get the attention of the customer. We also tend to include them on our alpine benches —they appeal to the same sorts of gardeners, and are ideal for pots and containers. “But the thing to watch is the watering. There are a number of plants that, for us, do not sit well under our normal automatic watering regimes, and diascias are one of them. They must not get too wet, so hand watering, when absolutely necessary, is best.” Species and cultivars:-
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.jpg?uselang=en-gb){kind=link}
Copied from Botanical Index Gallery Pages |
Appended to Botanical Name is |
Number of Botanical Plants in each Page or Gallery / comparison pages section |
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A, B, C, D, E, Links to 1000's of Indexed Plants in the galleries below are in addition to the ones above:- Bee pollinated plants per flower colour per month in Bee-Pollinated Alpines, Aquatic, Annual, Beddi-ng, Biennial and Bulb with Climber of 3 sector system are in
Botanical Wildflowers in |
Plant Type:- Gr = Grass |
Flower Colour:- followed by Annual, Bulb, Climber, |
Inv = Invasive; so pot the plant instead |
A, 391 Galleries/Comparison Pages:- Total 5851 plus plants in the above Galleries / Comparison pages section |
How comparison thumbnails with their text boxes will be changed to from
Flower Colour and Foliage Colour if not green Violet-blue, ACIDIC SAND, LOAM. Above contents of this text box require amend-ing Soil. |
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