Feather reed grass

Calamagrostis x acutiflora ‘Karl Foerster’


The Karl Foerster feather reed grass is a striking example of the beauty and character grasses can bring to Inland Empire gardens and landscapes. This is a cool season grass that grows best with regular moisture and in sunny locations. The thin, linear foliage of the grass grows 2-3 ft. tall during the spring grown season; numerous flower stems develop 4-5 ft. tall in mid-summer and persist into fall. This grass should be cut down to the base in late fall or early winter to make way for a new season of growth.

Many grasses are noted for their dramatic flower inflorescences, particularly when backlighting occurs with low angle fall sun conditions. The Karl Foerster feather reed grass is among the most notable grasses for fall accent character when many garden plants are becoming inactive. It is planted for special accent uses as well as along walkways and in raised planters.

Plant Type: Grass
Foliage Character: Evergreen
Habit: Upright, Robust, Graceful, Clumping, Arching
Growth Rate: Fast
Foliage Color: Medium green
Flower Color: Purple, Cream
Flower Season: Spring
Soil Adaptations: Loam, Clay
Exposure Adaptations: Heat, Cold hardy, All day sun
Function: Residential spaces, Raised planters, Parks and open space, Near pools and water features, Grouped, Flowering accent plant, Commercial spaces, Borders
Height: 2′ – 5′
Width: 2 ft. – 3 ft.