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Genus Imperata

Imperata cylindrica Photo/Illustration: Michelle Gervais

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The genus Imperata contains a few species of rhizomatous perennial grasses from Japan with flat, pointed leaves and short, summertime flowers. Use in a border, dry stream bed, in containers, at waterside, or in an open woodland. Some cultivars have vibrantly colored leaves.
Noteworthy characteristics: Flat, pointed leaves and short, silvery flowers.
Care: Grow in full sun or light shade, and moist but well-drained, rich soil. Provide a winter mulch in cold climates.
Propagation: By division in spring or early summer.
Problems: Generally trouble-free.