Overdam Feather Reed Grass

overdam feather reed grass calamagrostis acutiflora ftimg

Overdam Feather Reed Grass

Calamagrostis x acutiflora ‘Overdam’

Description & Overview

Overdam Feather Reed Grass is an upright, arching, cool season grass that produces beautifully white variegated leaves. In midsummer, delightful feathery reddish-brown flower spikes emerge maturing to golden-brown. An excellent specimen for spaces needing vertical interest.

Core Characteristics

Mature Height: 3-4 feet
Mature Spread: 2 feet
Growth Rate: Perennial
Growth Form: Upright grass with arching leaves
Light Requirements: Full Sun to Partial Shade
Site Requirements: Adaptable to many sites
Flower: Reddish-Brown
Bloom Period: June-July
Foliage: Green with white variegation
Fall Color: Wheat-tan
Fruit Notes: Golden-Brown seed heads, sterile

Suggested Uses:

More compact than Karl Foerster, Overdam Feather Reed Grass works well in spaces where vertical interest is needed. Use as a vertical accent, border, or clump in spaces where the white variegated leaves will stand out. It truly pops when placed against a darker background.

overdam feather reed grass calamagrostis acutiflora

Wildlife Value:

Birds may use Overdam Feather Reed Grass as a nesting and cover source.

Maintenance Tips:

Overdam Feather Reed Grass should be left up over winter for interest. As it is sterile, the seed heads don’t need to be removed to prevent spreading. In late winter or early spring, the grass can be cut back to 2-3″ above the crown to make room for new growth.

overdam feather reed grass calamagrostis acutiflora


Overdam Feather Reed Grass has no major insect or disease issues. In periods of extended rainfall and moisture, rust may develop on the grass. This will resolve once moisture levels fall back to normal.

Leaf Lore:

Calamagrostis x acutiflora is a hybrid between the Eurasian species Calamagrostis epigejos and Calamagrostis arundinacea. The attractive seed heads are sterile, preventing the grass from spreading beyond its roots.

Overdam Feather Reed Grass is a compact selection with variegated leaves. Its flowers are darker than those of Karl Foerster Feather Reed Grass, being reddish-brown rather than a lighter wheat color.

Overdam Feather Reed Grass is also slightly more shade tolerant than the Karl Foerster variety, and can be sited more liberally when it comes to light. However, it is not a plant tolerant of full shade and should not be placed where there is no direct sun.

Companion Plants:

With its variegated leaves, pair Overdam Feather Reed Grass with plants that will highlight the two-toned colors. It shines when placed in front of a large stature shrub like Bergeson Dogwood or Summer Wine Ninebark, and adds a nice texture in winter. In shadier sites, consider using Delft Lace Astilbe or Brunette Snakeroot to vary color and texture.

overdam feather reed grass calamagrostis acutiflora benchcard