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Ornamental Grass, Calamagrostis acutiflora ‘Overdam’

Overdam’ is a hybrid feather reed grass, which is valued for its variegated foliage, early bloom, vertical lines and ability to grow in wet soils. In June, tightly vertical flower stalks rise above the foliage to 3′ tall bearing narrow inflorescences of feathery plumes of sand-colored seed heads. Later, the plumes become pinkish-green, which turn golden as the seeds mature in summer and eventually turn tan in late fall through the winter. Leaves produce little fall color. It is a slowly-spreading, clump-forming, cool season ornamental grass which features a compact, erect, slightly arching, slender foliage clump (to 1′ tall and 2′ wide) of stiff, narrow leaves variegated with rich green and white stripes. Clumps generally provide good continuing winter interest. Similar to Calamagrostis x acutiflora ‘Karl Foerster’ except ‘Overdam’ clumps are more compact and foliage is variegated. ‘Overdam’ is an ideal backdrop for low-growing, flowering perennials all through the year.

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# Description Units Available Price/Unit
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OG285 Ornamental Grass, Calamagrostis acutiflora 'Overdam' out of stock $0.00
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Plant Details +

Size #1
Height 30-36"
Spacing 12-24" wide
Hardiness Zones 4-8
Exposure Full Sun
Foliage Variegated Green
Flower Pinkish Green
Bloomtime July-February

General Information +

Botanical: Calamagrostis acutiflora 'Overdam'

Common: Ornamental Grass

Family: Poaceae

General Characteristics: Overdam' is a feather reed grass cultivar, which is valued for its variegated foliage, early bloom, vertical lines and ability to grow in wet soils. It is a slowly-spreading, clump-forming, cool season ornamental grass which features a compact, erect, slightly arching, slender foliage clump (to 1' tall and 2' wide) of stiff, narrow leaves variegated with rich green and white stripes. Leaves produce little fall color, eventually turning tan in winter. In June, tightly vertical flower stalks rise above the foliage to 3' tall bearing narrow inflorescences of feathery, pinkish-green flowers, which turn golden as the seeds mature in summer and eventually tan. Clumps generally provide good continuing winter interest. Similar to Calamagrostis x acutiflora 'Karl Foerster' except 'Overdam' clumps are more compact and foliage is variegated. Ornamental Grasses are gaining in popularity all over the U.S. due to their undemanding nature and long lasting, year round beauty. There is nothing that adds such interesting forms, textures and movement to a garden, than with this diverse plant group. They can be planted along banks of ponds, incorporated into perennial gardens, grouped together, utilized as a ground cover along walkways, paths or on steep banks. They aren't fussy about soil requirements, are drought tolerant as well as insect and disease resistant.

Tip: Easily grown in average, medium to wet soil in full sun. Does well in heavy clay soils, unlike many of the other ornamental grasses. Prefers moist, rich soils, which do not dry out. Blooms in light shade, and appreciates some light afternoon shade in hot summer climates. Best foliage variegation usually occurs in cool northern climates. Cut clumps to the ground in late winter just before the new shoots appear. This grass will not self-seed in the garden because seeds are sterile.

Use: Mass, group or specimen. This is an excellent vertical accent for borders and for narrow spaces in the landscape. It is also effective in moist low spots or on pond/stream banks.

Planting/Care Instructions +

Pests or Diseases: No serious insect or disease problems.

Planting Instructions: Dig a hole large enough to hold the roots. Fill the hole with water and position the plant so the crown (where the root meets the stem) is just slightly below the soil line. Fill the hole with soil and water again. A slow release fertilizer may be used each spring, though it's not necessary.