(CALAMOGROSTIS) Karl Foerster Reed Grass

(CALAMOGROSTIS) Karl Foerster Reed Grass


‘Karl Foerster’ is the most popular of the hybrid feather reed grasses sold in commerce today. It is noted for its narrow-vertical growth of bright green leaves to 3’ tall and 2’ wide and feathery plumes of summer-blooming pink to purple tinged flowers on narrow upright stalks rising well above the foliage to 5’ tall. 2001 Perennial Plant of the Year Award.


Easily grown in average, medium to wet soils in full sun. Blooms well in light shade, and actually appreciates some part afternoon shade in hot summer climates, but generally tends to produce fewer flowers and develop floppier foliage as the amount of shade increases. Prefers rich, consistently moist soils that do not dry out. Reportedly does well in heavy clay soils, unlike many other kinds of ornamental grasses. Cut clumps to the ground in late winter just before the new spring shoots appear.


    #2 Container

    Zone: 5 to 9

    Height: 3.00 to 5.00 feet

    Spread: 1.50 to 2.50 feet

    Bloom Time: May to February

    Bloom Description: Pinkish-purple

    Sun: Full sun

    Water: Medium to wet

    Maintenance: Low

    Suggested Use: Rain Garden

    Flower: Showy, Good Cut, Good Dried

    Leaf: Good Fall

    Attracts: Birds

    Other: Winter Interest

    Tolerate: Erosion, Wet Soil, Black Walnut, Air Pollution


    Mass, group or specimen. Excellent vertical accent for borders and for narrow spaces in the landscape. Also effective in moist low spots or on pond/stream banks.


    Plants of Merit are plants selected for their outstanding quality and dependable performance for the lower Midwest. They grow consistently well. 


    Plants of Merit Selection Criteria

    •Easy to grow and maintain
    •Not known to be invasive in our area
    •Resistant or tolerant to diseases and insects
    •Has outstanding ornamental value
    •Reasonably available to purchase


    No serious insect or disease problems. Watch for rust, particularly after prolonged rainy periods.


    Products can not be shipped.  For local delivery and installation only.



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