Panicled Bulrush
Scirpus microcarpus
Last reviewed: August 2026
Scirpus microcarpus, or panicled bulrush, is a clumping wetland grass that blooms from May through July and does best in consistently wet soil with full sun to part shade.
Toxicity unknown
Panicled Bulrush (Scirpus microcarpus) 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 Panicled Bulrush as toxic to livestock.
Light
part shade
Water
high
Size
12"–48" H × 6"–24" W
Bloom
May, Jun, Jul
Native to
AZ, CA, CO, CT and 26 more states
Before you buy
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Small-fruited bulrush is a native sedge that forms clumps of narrow, grass-like foliage in wet areas. It produces small, inconspicuous brown flower clusters in late spring and early summer, thriving in consistently moist to wet soils.
Growing Panicled Bulrush
Grow Panicled Bulrush in part shade and high water. Mature plants reach 12 to 48 inches tall and spread 6 to 24 inches wide. Expect low maintenance to keep it looking intentional in a front yard.
In an HOA neighborhood
Panicled Bulrush takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Looks very wild and unmanicured
- Requires boggy conditions that appear unkempt
- May be mistaken for weedy marsh grass
Wildlife value
This wetland plant provides seeds for waterfowl and songbirds, and its dense growth offers nesting habitat for marsh birds. The roots help stabilize soil and filter water runoff.
Common questions
- How much light does panicled bulrush need?
- Panicled bulrush grows well in full sun to part shade. It handles more shade than many grasses if the soil stays wet.
- When does panicled bulrush bloom?
- It flowers from May through July, producing clustered brownish flower heads typical of the sedge family.
- What kind of soil moisture does this plant need?
- It needs consistently wet to saturated soil and is often found along stream banks, pond edges, and marsh margins.
- What growth habit does panicled bulrush have?
- It is a clumping, deciduous perennial grass-like sedge that dies back each year and regrows from its base.
- Is Panicled Bulrush toxic to livestock?
- The USDA PLANTS Database does not flag Panicled Bulrush as toxic to livestock.
- Is Panicled Bulrush HOA-friendly?
- Panicled Bulrush takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.
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
Ready to grow Panicled Bulrush? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
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