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Iris wilsonii will tolerate temperatures of up to – 15 degrees C. But may survive lower if protected or well mulched in winter. It is hardy to USDA Zone 6–8, and Zone H2 (which means Hardy to -15 to-20oC (5 to -4oF ), in Europe. It prefers soils with a ph level of 5.5 to 7 (acidic to neutral) and more moisture tolerant.
Iris forrestii is a species of flowering plant in the genus Iris, also the subgenus Limniris and in the series Sibiricae. It is a rhizomatous herbaceous perennial, from China (including Tibet) and Burma. It has linear grassy-like leaves, long thin stem and fragrant yellow or lemon-yellow flowers.
Iris giganticaerulea (the giant blue iris) is the largest species of the Louisiana irises. [2][3] It has very large green rhizomes, which are between 5 and 12 inches (13 – 30 cm) long and 0.75 to 1.5 inches (2–4 cm) thick. [4][5] They are shallow rooted, marked with the scars (of the previous seasons) leaves, with many branches, which can ...
Iris delavayi will tolerate temperatures of up to −15 degrees C. [7] But may survive lower if protected or well mulched in winter. [16] It is hardy to USDA Zone 5–8, [5] [9] and Zone H2 (which means Hardy to −15 to −20 °C (5 to −4 °F) [26]), in Europe. [10] They prefer soils with a ph level of 5.5 to 7 (acidic to neutral). [9]
Iris bulleyana grows in moist areas on hillsides and mountainsides, and in meadows (alpine or sub-alpine meadows, [19]), [3] [7] and river flats (in similar habitats to Iris forrestii and Iris wilsonii), [4] and beside stream sides. [3] It is found at 2300–4300m above sea level. [3] [4]
Iris (plant) Iris. (plant) Iris is a flowering plant genus of 310 accepted species [1] with showy flowers. As well as being the scientific name, iris is also widely used as a common name for all Iris species, as well as some belonging to other closely related genera. A common name for some species is flags, while the plants of the subgenus ...
As Iris acutiloba and the subspecies 'lineolata' are dwarf, [11] they can be grown in a pot, [4] [11] with sharp drainage and careful watering, and kept (frost-free) in greenhouse or cold frame, [12] or alpine house. [15] They should be planted in sandy, well drained soils in full sun. They need protection from spring and autumn rains.
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 ...
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