Bur-reed Sedge
Carex sparganioides
Last reviewed: August 2026
Carex sparganioides, or bur-reed sedge, is a clump-forming woodland grass that blooms from May through July and grows well in part sun to shady sites with medium to moist soil.
Toxicity unknown
Bur-reed Sedge (Carex sparganioides) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
The USDA PLANTS Database (opens in new tab) does not flag Bur-reed Sedge as toxic to livestock.
Light
part sun
Water
medium
Size
12"–36" H × 6"–18" W
Bloom
May, Jun, Jul
Native to
AR, CT, DE, GA and 23 more states
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Bur-reed sedge is a clumping native grass that forms neat, upright tufts of narrow green foliage. It produces small, inconspicuous flower clusters in late spring and early summer, then goes dormant in winter. This adaptable sedge tolerates various soil conditions and provides excellent texture in naturalistic plantings.
Growing Bur-reed Sedge
Grow Bur-reed Sedge in part sun and medium water. Mature plants reach 12 to 36 inches tall and spread 6 to 18 inches wide. Expect low maintenance to keep it looking intentional in a front yard.
In an HOA neighborhood
Bur-reed Sedge is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.
Works well in: front yard, foundation, street edge, mid zone.
- Goes completely dormant in winter, leaving brown stubble until spring
Wildlife value
While not a major pollinator plant, this sedge provides shelter and nesting material for small birds and beneficial insects. The seeds offer food for songbirds and small mammals in late summer and fall.
Common questions
- When does Carex sparganioides bloom?
- It typically flowers from May through July, producing slender greenish flower spikes common to woodland sedges.
- What light conditions suit Carex sparganioides best?
- It does well in part sun and also tolerates part shade to full shade, making it suited to woodland understories and shaded borders.
- How much water does this sedge need?
- It prefers medium to consistently moist soil and is often found on damp, humus-rich woodland floors rather than dry sites.
- What does the growth habit of Carex sparganioides look like?
- It forms clumping tufts of arching, grass-like foliage, giving it a tidy, mounded appearance typical of many woodland sedges.
- Is Bur-reed Sedge toxic to livestock?
- The USDA PLANTS Database does not flag Bur-reed Sedge as toxic to livestock.
- Is Bur-reed Sedge HOA-friendly?
- Bur-reed Sedge is generally an HOA-friendly choice in the right placement, with low maintenance.
These answers were drafted with an AI model from this plant's data. Verify care details with a local expert.
Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
If something looks wrong
Common plant problems, and what to check first
These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.
- It is dying right after planting
- Leaves turning yellow
- Wilting even though I watered it
- Brown crispy leaf tips
- Bugs on the plant
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