Location specific values:
Array
(
    [lat] => 33.755400
    [lng] => -118.363400
    [elevation] => 343.5686
    [rainfall] => 410.5377
    [cold_temperature] => 7.6682
    [temperature] => 26.8458
    [user_eto] => 1294.6813046
)
Plant specific values:
Array
(
    [rain_min_irrigation] => 967
    [eto_corrected] => 1023
    [eto_adjusted_rain_min (rain_min_irrigation / eto_corrected)] => 0.99315738
)
American Beakgrain (Diarrhena obovata) | Easyscape Plant Profile

American Beakgrain

(Diarrhena obovata)

American Beakgrain (Diarrhena obovata)

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Estimated Native Range
Species Map Help

Climate Requirements for Rancho Palos Verdes, California

This Plant Your Site Plant Suitability for Your Location
Precipitation 29" - 49" 16" Your precipitation may be insufficient for this plant. Irrigate N" / year. Irrigate N" / year
High Temp. 80°F - 96°F 80°F Your summer temperatures are normal for this plant. Excellent
Low Temp. 3°F - 35°F 46°F OK, but your winter temperatures are warmer than normal for this plant OK
This plant should grow well at your location with about N inches per year (Y minutes per month) of irrigation.

Summary

Diarrhena obovata, commonly known as American Beakgrain, is a deciduous perennial grass native to rich, moist woods and stream banks in the Eastern United States. It typically grows to a height and width of 2-3 feet (0.6-0.9 meters), forming clumps of arching, bright green leaves. The plant produces inconspicuous, beak-like seed heads in late summer to early fall, which are not particularly showy but add a textural element to the garden.

American Beakgrain is valued for its adaptability to shade and its utility as a ground cover in woodland gardens or shaded areas where other grasses may struggle. It is also used for erosion control due to its clumping habit. This grass is relatively low-maintenance, requiring minimal care once established, and is not known to suffer from serious pest or disease problems. It is tolerant of a range of soil types, provided they are consistently moist, and it thrives in part shade to full shade conditions. While not aggressive, it can slowly spread by rhizomes to form a dense ground cover.CC BY-SA 4.0

Plant Description

  • Plant Type: Grass
  • Height: 2-3 feet
  • Width: 2-3 feet
  • Growth Rate: Moderate
  • Flower Color: N/A
  • Flowering Season: Summer, Fall
  • Leaf Retention: Deciduous

Growth Requirements

  • Sun: Part Shade, Full Shade
  • Water: Medium, High
  • Drainage: Slow, Medium

Common Uses

Erosion Control, Groundcover, Low Maintenance

Natural Habitat

Rich, moist woods and stream banks

Other Names

Common Names: Hairy Beakgrain, American Beak-Grass, Obovate Beakgrain, Beakgrass, Ovate Beakgrass, Diarrhène Obovée

Scientific Names: Diarrhena obovata, Diarrhena americana var. obovata

GBIF Accepted Name: Diarrhena obovata (Gleason) Brandenburg