Overdam is a variegated feather reed grass with leaves striped in creamy white that later turns white with a pink flush. The foliage stays in a low, upright clump under 2 feet tall, so the color sits at eye level in the border.
In late spring, straight, feathery plumes rise to about 5 feet and ripen to sandy tan, holding their shape through the season. It does not reseed, tolerates clay and makes an elegant backdrop for lower perennials.
What it looks like
Narrow, arching blades about ¼ inch wide are green with bright creamy white margins and stripes that fade to white with a pink blush as summer goes on. The leaves form an upright clump under 2 feet tall and 1 to 2 feet wide. In late spring slender stems rise to about 5 feet, carrying narrow, feathery plumes that open with a purplish tint and turn sandy tan. At peak the clump is a bright white-striped base topped by straight, pale plumes.
Growing it with lavender
It shares lavender's need for full sun, and its white-striped leaves and pale upright plumes brighten the back of a lavender bed with a light, airy contrast.
Care
Grows best in full sun in average to fertile soil, including clay; tolerates dry spells once established. Hardy in zones 4 to 8. Cut back to about 6 inches in early spring.
At a glance
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Botanical name: Calamagrostis × acutiflora
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Flower color: Purplish aging to sandy tan
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Foliage: Green with creamy white margins, pink flush in summer
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Growth habit: Upright clump
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Mature size: 5 ft tall × 12–24 in wide
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USDA hardiness zones: 4–8
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Light: full sun
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Bloom start: Mid-June
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Peak bloom: Late-June
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Bloom pattern: Single Flush
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Deer resistance: Resistant
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Pollinator value: Low
Sizes and shipping
One full 72-cell plug tray: 72 young starter plugs of this variety (cells about 1⅓ in. wide × 2½ in. deep), rooted and ready to pot up into quarts or gallons. Best for growers and nurseries. Potted plants and plug trays ship during our live-plant seasons, March 1–May 31 and October 1–November 30; June through September is local pickup only. Plugs, potted plants and trays do not ship to AZ, CA, HI, ID, NV, OR, UT or WA.