Roscoea sp.

USDA Plant Hardiness Zone Map

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These 18 of tuberous perennials are related to Ginger, but in appearance are more reminiscent of Irises.They are grown for their orchid-like flowers.

They grow vigorously during the warm season, if they are kept moist, and then die back suddenly in autumn to a short resting rhizome with fleshy roots. They are cold hardy, but they are susceptible to excess water in winter when dormant.

Similar plants:

• Curcuma roscoeana, Curcuma kurzii, Curcuma coccinea (jewel of Burma, Orange Ginger, Orange Siam Tulip)