Ivydene Gardens Glossary: F |
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F1 hybrids First-generation plant, obtained from crossing two selected pure-breeding parents to produce uniform, vigorous, and high-yielding offspring. Seed from F1 hybrids does not come true. F2 hybrids: plants that result from self- or cross-fertilisation of F1 hybrids; they are less uniform than their parents. Falls The pendant or horizontally placed tepals or petals of irises and some related plants. Family A category in plant classification, a grouping together of related genera, for example the family Rosaceae includes the genera Rosa, Sorbus, Rubus, Prunus and Pyracantha; the family Iridaceae includes the genera Iris, Crocus, Dierama, and Crocosmia. Fastigiate With the branches (usually of trees and shrubs) growing vertically and almost parallel with the main stem. Feathered Of maiden trees that have several lateral branches (“feathers”). Fertile (of plants). Producing viable seed: shoots bearing flowers are also said to be fertile shoots as opposed to non-flowering (sterile) shoots. Fertilisation The fusion of a pollen grain nucleus (male) with an ovule (female) to form a fertile seed. Fibrous 1) Of roots, fine and often branching and dense; 2) Of loam, containing fibre derived from (dead) grass roots. Filament The stalk of the stamen which bears the anther. Fimbriate Of part of a plant that has a fringed margin. Plant organs with a fringe of hairs are said to be ciliate. Floating cloche Lightweight sheet, usually of woven polypropylene (fibre fleece), placed over a crop, which is lifted up by the plants as they grow. It provides some frost protection while allowing water and light penetration. Also known as floating mulch. Floret A (generally) small flower in a flowerhead consisting of many flowers. Flower The part of the plant containing the reproductive organs usually surrounded by sepals and petals. The basic flower forms are:
Flowerhead A mass of small flowers or florets that together appear to form a single flower as in members of the family Compositae. Foliage The green leaves of a plant. Force To induce plant growth, usually of flowers or fruit by control of the environment, normally by increasing the temperature. Forma (f.) A variant within a species usually distinguished only by minor characteristics. Clematis montana f. grandiflora is a larger-flowered, more vigorous form of C. Montana; also loosely used for any variant of a species. Formative pruning A method of pruning that is carried out on young trees and shrubs to develop the basic branch structure of the desired form or shape. Foundation planting The basic, and usually permanent structural and shelter planting of trees and shrubs in a garden. Framework The permanent branch structure of a tree or shrub: the main branches that determine its ultimate shape. Framework plants The plants in a garden that form the basis or structure of the design. Frame-working (of fruit trees) Pruning back all side growths to the main framework and grafting scions of a different culture onto each main framework branch. Friable (of soil) Of a good, crumbly texture: capable of forming a tilth that can be worked easily. Frond 1) The leaf-like organ of a fern. Some ferns produce both barren and fertile fronds, the latter bearing spores. 2) Loosely applied to large, usually compound leaves such as those of Palms. Frost pocket A site, often a hollow, where cold air gathers, that is subject to severe and often prolonged frosts. Fruit The fertilised ripe ovary of a plant containing one to many seeds, for example, berries, hips, capsules and nuts; the term is also used of edible fruits. Fruit set The successful development of fruits after pollination and fertilisation. Fungicide A chemical that kills fungi especially those responsible for various plant diseases. . |
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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 Signage On a Fence:
'Salesmen welcome! Dog food is expensive!' In a Restaurant window: 'Don't stand there and be hungry, Come on in and get fed up.'
In the front yard of a Funeral Home: 'Drive carefully. We'll wait.' |
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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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