9/28/2023 0 Comments Allium caesiumSpecies 550–700 (96 in the flora): mostly Northern Hemisphere.Īs with many other genera in the Liliaceae sensu lato, Allium has been segregated into a separate family, Alliaceae, by most recent authors (R. Seeds black, obovoid, finely cellular-reticulate, cells smooth or minutely roughened, with 1–8 papillae, without caruncle except in A. lacunosum style 1 stigma capitate to ± 3-lobed pedicel erect or spreading (lax in A. nigrum), crest processes 3 or 6, smooth except in A. hoffmanii papillose to ciliate proximally) anthers and pollen variously colored ovary superior, 3-lobed, sometimes crested with processes, 3-locular, usually 2 ovules per locule (6–8 in A. victorialis appendaged), linear, generally glabrous (A. triquetrum) tepals 6, in 2 similar whorls, ± distinct, petallike, usually becoming becoming dry and persisting stamens 6, epipetalous filaments in all but 1 native species broad at base, fused into ring (some introduced species and A. schoenoprasum), sometimes replaced totally or partially by bulbils, subtended by spathe bracts bracts conspicuous, ± fused, usually 3+-veined, equaling pedicel except in some introduced species, membranous. Inflorescences umbellate, flowering centripetally (centrifugally in A. Scape usually persistent, terete or flattened. lacunosum), straight or ± falcate (coiled or circinate in A. Leaves generally withering from tip by anthesis, usually persistent, 1–12, basal blade usually linear, terete, channeled, or flat (carinate in A. Bulbs solitary or clustered, dividing at base, or on rhizomes, reforming annually outer coats generally brown or gray, smooth, fibrous, or with cellular reticulation (generally important in identification) inner coats membranous. Herbs, perennial, scapose, from tunicate bulbs, with onion odor and taste. We’re very sorry, but due to state agricultural restrictions, we are not permitted to ship Allium bulbs to Idaho, or the following five counties in the State of Washington: Adams, Benton, Franklin, Grant and Klickitat.Īllium are The Art & Soul of Spring and Summer.44. Variable horticultural zones ranging from 3-10 depending on the variety. Height: variable depending on the variety. Bloom time: May through August depending on the variety. Plant the smaller Allium bulbs 4" deep and 3" to 4" apart. Plant the larger Allium bulbs 6" to 8" deep and 8" to 10" apart. Please note that flower size is presented as the width, or diameter, from left to right. While most Allium are not recommended for forcing over the winter, there are several varieties that are known to be good forcers: A. All Allium must be planted outdoors in the fall after the soil has cooled down to around 55☏ (normally after two weeks of night time temperatures hovering around 40☏). unifolium can handle soil with a bit more moisture. Allium require rich, well-draining and neutral pH soil and benefit from a summer dry period. cowanii, oreophilum and siculum bulgaricum. They are also valuable cut and dried flowers.Īllium require full sunlight although there are several varieties that can also thrive in partial sunlight: A. Adored by bees, butterflies and pollinators, Allium extend the spring flowering season with bold, dramatic color and statuesque garden architecture. Latin for garlic, the Flowering Onions are available in diverse heights and sizes, are rabbit-, rodent- and deer-resistant, and are seldom affected by disease.
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