Freesia is a genus of herbaceous perennial flowering plants in the family Iridaceae, first referred to as a genus in 1866 by Chr. Fr. Echlon (1795-1868) and known as after German botanist and doctor Friedrich Freese (1794-1878). It is local to the eastern aspect of southern Africa, from Kenya south to South Africa, most varieties being found in Cape Provinces. Kinds of the previous genus Anomatheca are now contained in Freesia. The crops often called "freesias", with fragrant funnel-shaped flowers, are cultivated hybrids of lots of Freesia types. Some other species are also grown up as ornamental plant life.
They are simply herbaceous plants which expand from a conical corm 1-2.5 cm diameter, which transmits up a tuft of small leaves 10-30 cm long, and a sparsely branched stem 10-40 cm extra tall bearing a few leaves and a loose one-sided spike of bouquets with six tepals. Many varieties have fragrant narrowly funnel-shaped plants, although those previously located in the genus Anomatheca, such as F. laxa, have chiseled flowers. Freesias are being used as food plants by the larvae of some Lepidoptera kinds including Large Yellowish Underwing.
CULTIVATION AND USES
The vegetation usually called "freesias" derive from crosses manufactured in the 19th century between F. refracta and F. leichtlinii. Numerous cultivars have been bred from these types and the red- and yellow-flowered kinds of F. corymbosa. Modern tetraploid cultivars have flowers which range from white to yellow, pink, red and blue-mauve. They are simply mostly cultivated professionally in the Netherlands by about 80 growers.[3] Freesias can be readily increased from seed. Because of their specific and pleasing scent, they are generally used in palm products, shampoos, candles, etc.[citation needed], however, the blossoms are mainly utilized in wedding bouquets. They could be planted in the fall season in USDA Hardiness Zones 9-10 (i.e. where in fact the temperature will not show up below about -7 ?C (20 ?F)), and in the spring and coil in Areas 4-8.
Freesia laxa (formerly called Lapeirousia laxa or Anomatheca cruenta) is one of the other varieties of the genus which is often cultivated. Smaller than the scented freesia cultivars, they have flat alternatively than cup-shaped flowers. Extensive 'forcing' of this bulb occurs in Half Moon Bay in California where several growers chill the light bulbs in proprietary solutions to satisfy frosty dormancy which results in formation of buds inside a predicted range of weeks - often 5 weeks at 55 ?F (13 ?C).
Herbaceous plants (in botanical use frequently simply herbs) are plants that contain no consistent woody stem above ground. Herbaceous vegetation may be annuals, biennials or perennials. Annual herbaceous plants perish completely by the end of the growing season or when they may have flowered and fruited, and they then increase again from seed. Herbaceous perennial and biennial crops may have stems that die by the end of the growing season, but elements of the plant make it through under or near to the bottom from season to season (for biennials, until the next growing season, when they flower and perish). New growth builds up from living tissue left over on or under the bottom, including roots, a caudex (a thickened portion of the stem at ground level) or numerous kinds of underground stems, such as light bulbs, corms, stolons, rhizomes and tubers. Examples of herbaceous biennials include carrot, parsnip and common ragwort; herbaceous perennials include potato, peony, hosta, mint, most ferns and most grasses. In comparison, non-herbaceous perennial crops are woody vegetation which have stems above surface that stay alive through the dormant season and grow shoots the next calendar year from the above-ground parts - included in these are trees and shrubs, shrubs and vines.
Les fleurs de freesias sauvages viennent d39;éclore ce weekend
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