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Most cultivars winter over even in the frigid conditions of the far northern U.S. Like other fall bulbs, snowdrops need a period of cold, called stratification. A long period of temperatures below ...
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Iris reticulata has spherical to drop shaped bulbs, [4] that are coated with a solid brown fiberous network. [5] The leaves appear after flowering, [5] it has 10 cm (3.9 in) high stems. [6] [7] In the Northern Hemisphere it blooms in the winter, between November and January, [8] [6] or sometimes in February. [5]
Iris florentina has also been treated as the correct name for the true species also known as Iris albicans Lange. It is cultivated as an ornamental plant in temperate regions almost worldwide and is a rhizomatous perennial from southern Europe , mainly Italy (including the city of Florence ) and France .
Iris japonica, commonly known as fringed iris, shaga and butterfly flower, is a native of China and Japan. It is a species in the genus Iris, in the subgenus Limniris and within the Lophiris section. It is a rhizomatous perennial plant, with pale blue, lavender or white flowers with an orange or yellow crest.
"Japanese iris" is also a catch-all term for the Japanese iris proper (hanashÅbu), the blood iris (I. sanguinea, ayame) and the rabbit-ear iris (I. laevigata, kakitsubata). I. unguicularis is a late-winter-flowering species from Algeria, with sky-blue flowers with a yellow streak in the centre of each petal, produced from Winter to Spring.
Iris bucharica (also Bukhara iris, corn leaf iris and horned iris) is a species of flowering plant in the family Iridaceae. It is a bulbous herbaceous perennial, from temperate Asia, within Afghanistan, Tajikistan and Uzbekistan. It has long blue green leaves, many flowers in spring, in shades of yellow and white.
Iris setosa, the bristle-pointed iris, is a species of flowering plant in the genus Iris of the family Iridaceae, it belongs the subgenus Limniris and the series Tripetalae.It is a rhizomatous perennial from a wide range across the Arctic sea, including Alaska, Maine, Canada (including British Columbia, Newfoundland, Quebec and Yukon), Russia (including Siberia), northeastern Asia, China ...