General Plant Information (Edit)
Plant Habit: Grass/Grass-like
Life cycle: Perennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Water Preferences: In Water
Wet Mesic
Soil pH Preferences: Moderately acid (5.6 – 6.0)
Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Minimum cold hardiness: Zone 3 -40 °C (-40 °F) to -37.2 °C (-35)
Maximum recommended zone: Zone 9b
Plant Height: 12 - 36 inches, to 6 feet high
Plant Spread: 12 - 24 inches, to 5 feet or more
Leaves: Unusual foliage color
Fruit: Edible to birds
Fruiting Time: Summer
Late summer or early fall
Late fall or early winter
Flowers: Inconspicuous
Bloom Size: Under 1"
Flower Time: Summer
Late summer or early fall
Underground structures: Rhizome
Suitable Locations: Bog gardening
Uses: Will Naturalize
Edible Parts: Fruit
Wildlife Attractant: Birds
Resistances: Deer Resistant
Rabbit Resistant
Flood Resistant
Propagation: Seeds: Sow in situ
Propagation: Other methods: Cuttings: Root
Pollinators: Wind
Containers: Not suitable for containers
Conservation status: Least Concern (LC)

Conservation status:
Conservation status: Least Concern
Common names
  • Woolgrass
  • Cottongrass bulrush
  • Marsh bulrush
  • Teddybear paws
  • Wool Grass
  • Woolrush
  • Woolly Grass Bulrush

Photo Gallery
Location: Fairfax, VA | September 2022

photo by Fredlyfish4, courtesy of NC Cooperative Extension: https
Location: Rehoboth Beach, Delaware
Date: 2010-09-08
the plant at a drainage pond
Location: near West Chester, Pennsylvania
Date: 2015-09-11
tall plant in a wet meadow
Location: Rehoboth Beach, Delaware
Date: 2010-09-08
the plant at edge of pond with other wetland plants
Location: southern New Jersey
Date: 2013-08-10
plants in mudy edge of creek
Photo by SongofJoy
This plant is tagged in:

  • Posted by ILPARW (southeast Pennsylvania - Zone 6b) on Feb 12, 2018 7:29 PM concerning plant:
    Common Woolgrass is a common plant over a large native range of all Minnesota down through eastern Texas over to central Florida up through all of New England into southeast Canada growing in wet or moist soils of swamps, marshes, ditches, moist or wet meadows, and along lakes, ponds, and various watercourses. It is a member of the Sedge Family and is a grass ally. but not a true grass. Its stems are solid and 3-angled. It begins as a clump perennial but in time it can spread to become a colony from rhizomes. It is a cool season plant. It is sold by some native plant nurseries for native plant landscapes, bog gardens, or to be used by conservation organizations to control water erosion around ponds, lakes, and watercourses. It is not sold by conventional nurseries for ornamental purposes, so far.

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