Tennessee Smart Yards Native Plants

A comprehensive database of Tennessee native plants

American Beakgrain, Beak Grass

American Beakgrain, Beak Grass

Diarrhena americana

Part to full shade, moderately wet to moderately dry moisture level, prefers rich soil but tolerates average.  1-3 feet height, blooms in summer, greenish flowers, will naturalize by slender rhizomes and can form dense colonies under optimum growing conditions.

Germination Code:  C(60), G

Native Region:  Middle Tennessee and lightly in East Tennessee

Warm season. Shiny, dark green, arching foliage provides an attractive groundcover in shady areas.  Each seed is tapered to a blunt beak, which gives rise to its common name. Tolerates dense shade and dry soil. Turns a rich golden brown in fall.

grass;sun/shade;wet;clay
grass;sun/shade;wet;loam
grass;sun/shade;wet;sand
grass;sun/shade;medium;clay
grass;sun/shade;medium;loam
grass;sun/shade;medium;sand
grass;sun/shade;dry;clay
grass;sun/shade;dry;loam
grass;sun/shade;dry;sand
grass;shade;wet;clay
grass;shade;wet;loam
grass;shade;wet;sand
grass;shade;medium;clay
grass;shade;medium;loam
grass;shade;medium;sand
grass;shade;dry;clay
grass;shade;dry;loam
grass;shade;dry;sand

One response to “American Beakgrain, Beak Grass

  1. joystewart January 8, 2017 at 5:17 pm

    I planted this grass by seed in full shade about 5-6 years ago. I like the appearance and it came up well from seed. Over the last 5 years I have watched it slowly move from the top of the hill where it was originally planted down the hillside and into the sun. It doesn’t seem to mind the sun at all and it never gets supplemental watering. Now it is pretty well established on the hillside in full sun. I am curious to see whether it continues to spread in its new location.

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