Ivydene Gardens Glossary: S |
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Sap The juice of a plant contained in the cells and vascular tissue. Sapling A young tree; a seedling or any young tree before the wood hardens. Scandent Ascending or loosely climbing. (See also Climber.) Scarification 1) Abrasion or chemical treatment of a seed coat in order to speed up water intake and induce germination. 2) Removing moss and thatch from a lawn using a scarifier or rake. Scion A shoot or bud cut from one plant to graft onto a rootstock (stock) of another. Scree A slope comprising rock fragments formed by the weathering of rock faces: simulated in gardens as scree beds, in which high-altitude alpines that need excellent drainage may be grown. Seed The ripened, fertilised mule containing a dormant embryo capable of developing into an adult plant. Seedhead Any fruit that contains ripe seeds. Seedling A young plant that has developed from a seed. Selection A plant selected for particular characteristics and usually propagated to retain the same characteristics. Self seed To shed fertile seeds that produce seedlings around the parent plant. Self-fertile Of a plant that produces viable seed when fertilised with its own pollen. Self-pollination The transfer of pollen from the anthers to the stigma of the same flower, or alternatively to another flower on the same plant (see Cross pollination). Self-sterile A plant unable to produce viable seed after self-fertilisation, and requiring a different pollinator in order for fertilisation to occur. Also known as “self-incompatible” — incapable of self-fertilisation. Semi-deciduous See Deciduous. Semi-determinate Used of tall or cordon tomatoes that will only grow to 1 to 1.2m (3 to 4ft) long. Semi-evergreen See Evergreen. Sepal The outer whorl of a flower, usually small and green but sometimes coloured and petal-like. Set 1) A small onion, shallot bulb, or potato tuber, selected for planting; 2) A term describing flowers that have been successfully fertilised and have produced small fruits. Sexual reproduction A form of reproduction involving fertilisation, giving rise to seed or spores. Sheet mulch A mulch using artificially produced material (e.g. plastic). Shoot A branch, stem or twig. Shrub A woody-stemmed plant, usually branched from or near the base lacking a single trunk. Sideshoot A stem that arises from the side of a main shoot. Simple (mainly of leaves) Undivided. Single digging A method of digging in which only the topsoil is turned over to a depth of one spit. (See also Double Digging.) Snag A short stub or frayed end left after incorrect pruning. Soil mark The usually noticeable point on a plant’s stem that shows the original soil level before the plant was lifted. Species A category in plant classification, the lowest principal rank below genus containing closely related very similar individuals. Specimen plant A striking plant, usually a tree or shrub in prime condition, grown where it can be clearly. Spent (of flowers) Dying or dead. Sphagnum mosses Mosses commonto bogs; their moisture-retentive nature is valued when used as a component of growing media, for example in orchid cultivation. Spike A racemose and hence indeterminate inflorescence that bears unstalked flowers along a common axis (stem). Spikelet A small spike, forming part of a compound inflorescence; often applied to grasses where the flowerhead consists of several flower, with basal bracts. Spit The depth of a spade’s blade, usually 25-30cm (10-12in). Spoon-type Applied to the florets of chrysanthemums (and some other flowers) in which the quill-like florets expand to form a spoon shape at the tips. Sporangium A body that forms spores on a fern. Spore The minute reproductive structure of flowerless plants, such as ferns, fungi and mosses. Spray A group of flowers or flowerheads on a single, branching stem, such as occurs on many chrysanthemums and carnations. Spur 1) A hollow projection from a petal, often producing nectar. 2) A short branch or branchlet bearing flower buds, as on fruit trees. Stalk A general term describing the stem of a leaf or flower (e.g. petiole, peduncle). Stamen The male reproductive organ in a plant, comprising the pollen-producing anther and usually its supporting filament or stalk. Standard 1) A tree with at least 2m (6ft) of stem below the first branches (see also Half-standard). 2) A shrub trained so that it has a clear length of stem below the branches (1-1.2m/3-4ft for roses). 3) One of the three inner and often erect perianth segments of the iris flower. 4) The largest, usually uppermost petal of a flower in the subfamily Papilionoideae (peas and beans of the family Leguminosae). Station sow To sow seed individually or in small groups at fixed intervals along a row or drill. Stem The main axis of a plant, usually above ground and supporting leaves, flowers and fruits. Sterile 1) Not producing flowers or viable seed. 2) Of flowers without functional anthers and pistils. Stigma The apical portion of a carpel, usually borne at the tip of a style, which receives pollen prior to fertilisation. Stock plant A plant used to obtain propagating material, whether seed or vegetative material. Stolon A horizontally spreading or arching stem, usually above ground, which roots at its tip to produce a new plant. Often confused with runner. Stone fruits Fruits, also known as “drupes”, with one or more seeds (“stones”) surrounded by fleshy, usually edible tissue. They are common in the genus Prunus (e.g. apricots, plums, cherries) and some other plants, such as mangoes that produce indehiscent woody fruits. Stool A number of shoots arising, more or less uniformly, from the base of an individual plant, for example some shrubs cut back regularly to produce propagating material and also chrysanthemums. Stooling The routine pruning back of woody plants by coppicing. Stopping See Pinching out. Strain A loose undefined term sometimes applied to races of seed-raised plants, not a term accepted under the International Code for the Nomenclature of Cultivated Plants because of its imprecise definition. Stratification Storage of seed in warm or cold conditions to overcome dormancy and aid germination. Stylar column A column of joined styles. Style The usually elongated part of a carpel between the ovary and stigma, not always present. Subfamily A category in plant classification, a division within the family. Sub-lateral A sideshoot originating from a lateral shoot or branch. Subshrub 1) A low-growing plant that is entirely woody. 2) A plant that is woody at the base but has soft, usually herbaceous growth above. Subsoil The layers of soil beneath the topsoil; these are usually less fertile and of poorer texture and structure than the topsoil. Subspecies A subdivision of a species, higher in rank than varietas (see variety) or forma. Succulent (of plants) A plant with thick, fleshy leaves and/or stems adapted to store water. All cacti are succulents. Sucker 1) A shoot that arises below ground from a plant’s roots or underground stem. 2) On grafted plants, a sucker is any shoot that arises below the graft union. Sympodial Definite growth of a shoot terminating in an inflorescence or dying; growth is continued by lateral buds. Systemic Term describing a pesticide or fungicide that is absorbed and distributed through a plant when applied to the soil or foliage. . |
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Site design and content copyright ©December 2006. Page structure amended October 2012. Glossary Index added to New Page Template March 2016. 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. See
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EU Directive No. 456179 |
THE 2 EUREKA EFFECT PAGES FOR UNDERSTANDING SOIL AND HOW PLANTS INTERACT WITH IT OUT OF 10,000:-
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when I do not have my own or ones from mail-order nursery photos , then from March 2016, if you want to start from the uppermost design levels through to your choice of cultivated and wildflower plants to change your Plant Selection Process then use the following galleries:-
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There are other pages on Plants which bloom in each month of the year in this website:-
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The following details come from Cactus Art:- "A flower is the the complex sexual reproductive structure of Angiosperms, typically consisting of an axis bearing perianth parts, androecium (male) and gynoecium (female). Bisexual flower show four distinctive parts arranged in rings inside each other which are technically modified leaves: Sepal, petal, stamen & pistil. This flower is referred to as complete (with all four parts) and perfect (with "male" stamens and "female" pistil). The ovary ripens into a fruit and the ovules inside develop into seeds. Incomplete flowers are lacking one or more of the four main parts. Imperfect (unisexual) flowers contain a pistil or stamens, but not both. The colourful parts of a flower and its scent attract pollinators and guide them to the nectary, usually at the base of the flower tube.
Androecium (male Parts or stamens) Gynoecium (female Parts or carpels or pistil) It is made up of the stigma, style, and ovary. Each pistil is constructed of one to many rolled leaflike structures. Stigma This is the part of the pistil which receives the pollen grains and on which they germinate. Style This is the long stalk that the stigma sits on top of. Ovary The part of the plant that contains the ovules. Ovule The part of the ovary that becomes the seeds. Petal The colorful, often bright part of the flower (corolla). Sepal The parts that look like little green leaves that cover the outside of a flower bud (calix). (Undifferentiated "Perianth segment" that are not clearly differentiated into sepals and petals, take the names of tepals.)"
The following details come from Nectary Genomics:- "NECTAR. Many flowering plants attract potential pollinators by offering a reward of floral nectar. The primary solutes found in most nectars are varying ratios of sucrose, glucose and fructose, which can range from as little a 8% (w/w) in some species to as high as 80% in others. This abundance of simple sugars has resulted in the general perception that nectar consists of little more than sugar-water; however, numerous studies indicate that it is actually a complex mixture of components. Additional compounds found in a variety of nectars include other sugars, all 20 standard amino acids, phenolics, alkaloids, flavonoids, terpenes, vitamins, organic acids, oils, free fatty acids, metal ions and proteins. NECTARIES. An organ known as the floral nectary is responsible for producing the complex mixture of compounds found in nectar. Nectaries can occur in different areas of flowers, and often take on diverse forms in different species, even to the point of being used for taxonomic purposes. Nectaries undergo remarkable morphological and metabolic changes during the course of floral development. For example, it is known that pre-secretory nectaries in a number of species accumulate large amounts of starch, which is followed by a rapid degradation of amyloplast granules just prior to anthesis and nectar secretion. These sugars presumably serve as a source of nectar carbohydrate. WHY STUDY NECTAR? Nearly one-third of all worldwide crops are dependent on animals to achieve efficient pollination. In addition, U.S. pollinator-dependent crops have been estimated to have an annual value of up to $15 billion. Many crop species are largely self-incompatible (not self-fertile) and almost entirely on animal pollinators to achieve full fecundity; poor pollinator visitation has been reported to reduce yields of certain species by up to 50%." |
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The following details about DOUBLE FLOWERS comes from Wikipedia:- "Double-flowered" describes varieties of flowers with extra petals, often containing flowers within flowers. The double-flowered trait is often noted alongside the scientific name with the abbreviation fl. pl. (flore pleno, a Latin ablative form meaning "with full flower"). The first abnormality to be documented in flowers, double flowers are popular varieties of many commercial flower types, including roses, camellias and carnations. In some double-flowered varieties all of the reproductive organs are converted to petals — as a result, they are sexually sterile and must be propagated through cuttings. Many double-flowered plants have little wildlife value as access to the nectaries is typically blocked by the mutation.
There is further photographic, diagramatic and text about Double Flowers from an education department - dept.ca.uky.edu - in the University of Kentucky in America.
"Meet the plant hunter obsessed with double-flowering blooms" - an article from The Telegraph. |
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The Garden Style chosen at the beginning defines what a garden should look like. Following this choice of Garden Style, then:-
Plant Association shows which plant combinations give pleasing flower or foliage colour combinations, then Plant Type gives growing conditions of a family of plants - ie Primulas - with lists of primulas with the same flower colour, foliage colour or height and where is suitable for those plants, followed by Plant Species gives data about a family of plants in a restricted format - ie without lists - as the lowest level of useful information (unless you are prepared to read the text in a whole book each time you want to use this particular species of plant).
Gardening gives general information on how to garden for the whole garden. Garden Cultivation gives specific information on veg, fruit, lawn, pond, etc. Garden Pests details garden pests/diseases and their control.
Practical Projects gives details on how to construct hard landscaping. |
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Ground Cover Herbs from Seed I often get asked what herbs are suited as ground covers. Customers tell me, "I hate cutting grass," or "I like trying something completely different, and I don't mind if my neighbours think I'm crazy to dig up my lawn." Herbal ground covers are very different, but their pleasing leaf textures and often showy masses of colour are becoming more popular in place of grass. Being the tough little critters they are, they need next to no care once established. And if you don't mind foliage and flowers that tickle your ankles and beyond, you can dispense with the weekly trysts with the lawnmower to keep things trim and proper. The biggest problem with herbal lawns is the start up cost. Regrettably, some of the finest low growing herbs are only increased by cuttings or division – the flowerless variety of english chamomile, Treneague, is a notable example. You need the payroll of a CEO to afford enough plants for an instant lawn. Or, you need the patience for many seasons of divide and spread to cover much ground starting with a few plants. Fortunately there are several good choices for herbs you can grow from seed. By far the most popular is wild thyme (Thymus praecox subsp. articus), also known as mother-of-thyme. It grows 4 to 6 inches high, has masses of rose-pink flowers in July, and grows fast enough to crowd out weeds. At 110,000 seeds per ounce, the seeds are very fine, much smaller than grass seeds, so it is a good idea to mix seeds with a filler like sand to avoid dropping 90% of your seed in 10% of the area to be covered. We recommend an ounce of seed per 1000 square feet. In the kitchen wild thyme is not commonly regarded as a culinary herb in North America, but European cooks have long used it in meat dishes just like the more famous English and French thymes (Thymus vulgaris). If nothing else, wild thyme will at least drive you from drink should you dare to consumer alcohol and the leaves at the same time. The combination causes a mother-of-a-hangover! Another popular choice for lawnless lawns is yarrow (Achillea millefolium). While its white, red or pink flowering stalks can reach a foot in height, its dense, many-divided leaves make for a cushion lawn that just invites a picnic, a snooze or other prostrate activities. I have seen yarrow used very successfully in small urban settings. especially under partial shade. If the flowers get too high, one or two runs a season with the lawnmower will keep things in check. Yarrow seeds are small and light, lighter than wild thyme. there are 175,000 seeds per ounce, and an ounce per 2500 square feet is the recommended sowing rate. Yarrow tea is insurance for colds and flus, which is a good thing if you are going to lie around in your lawn a lot. If you don't mind a more rangy and taller cover, Fassen's catnip (Nepeta x faassenii) is a good aromatic choice, growing up to 12 inches in height. Don't worry, cats are not as enamoured by this variety as they are by the much taller growing regular catnip (Nepeta cataria). Sow an ounce per 600 square feet. Roman chamomile (Chamaemelum nobile) is a good choice for warmer, sunny locales. It is a perennial, hardy to zone 6, with finely divided emerald leaves. The small daisy-like flowers are, of course, used to make the popular herbal tea. Be forewarned, there are those who insist that tea made from the Roman (sometimes also known as 'English') is superior to the annual German or Hungarian variety (Matricaria recutita), and there are others who argue just as strenuously the other way. As sides ten to fall along ethnic lines, we prefer to stay out of the debate! In any case, a Roman chamomile lawn is pure enchantment in many landscape settings. Again the seed are very fine – 155,000 per ounce – and one ounce will cover 2000 square feet. As with all seeds this small, it is crucial not to plant too deep; best simply to press the seeds, once broadcast, into the soil using a board or other object with a flat surface. |
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