Chiba University Matsudo/Kashiwa Campus Plant Database

Details of genus: Roscoea [1964]

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Family: Zingiberaceae

family_ja: ショウガ

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description_en: Genus of about 18 species of tuberous perennials from meadows, slopes, and partially forested areas in the Himalayas and China. They are cultivated for their unusual, hooded, orchid-like flowers, which have prominent, entire or 2-lobed lips. The flowers are surrounded by overlapping bracts, and are produced on leafy stems from the leaf axils in summer or autumn. The arching leaves are stem-sheathing and linear, or lance-shaped to oblong-ovate. Roscoeas thrive in cool climates; grow in a peat bed, a woodland garden, or a damp, shady border.

hardiness_en: Fully hardy to frost hardy; will survive temperatures to -20°C (-4°F) if planted very deep.

cultivation_en:

propagation_en: Sow seed in containers in a cold frame as soon as ripe. Divide in spring.

pests_en: Slugs and vine weevils may be a problem.

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comment:

comment_ja: ロスコエア

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Update Information: Created: 2007-12-06 12:51; Updated: 2020-09-04 03:56

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