Tall Horned Beaksedge
Rhynchospora macrostachya
Last reviewed: June 2026
Light
part sun
Water
high
Size
12"–36" H × 6"–18" W
Bloom
Jun, Jul, Aug, Sep
Native to
AL, AR, CT, DE and 21 more states
Pollinators
bees, beetles
Rhynchospora macrostachya is a native sedge that forms neat clumps of slender stems topped with distinctive brownish flower clusters. This wetland plant thrives in consistently moist to wet soils and provides an attractive upright texture in rain gardens and bog plantings. It blooms from June through September with small but interesting seed heads.
In an HOA neighborhood
Tall Horned Beaksedge 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.
- Sedge appearance may be mistaken for weedy grass
- Brown seed heads can look unkempt to conventional gardeners
- Requires consistently wet conditions that may appear problematic
Wildlife value
The flowers attract bees and beetles during the long summer blooming period. The seeds provide food for wetland birds and small mammals.
Common questions
- How much sun does Tall Horned Beaksedge need?
- Tall Horned Beaksedge grows best in part sun conditions.
- When does Tall Horned Beaksedge bloom?
- Tall Horned Beaksedge blooms in June, July, August, and September.
- Where is Tall Horned Beaksedge native?
- Tall Horned Beaksedge (Rhynchospora macrostachya) is native to AL, AR, CT, DE and 21 more states, per the USDA PLANTS Database and regional native plant society lists.
- What pollinators does Tall Horned Beaksedge attract?
- Tall Horned Beaksedge draws bees and beetles.
- Is Tall Horned Beaksedge HOA-friendly?
- Tall Horned Beaksedge takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.
Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Ready to grow Tall Horned Beaksedge? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
Not sure where to start? Take the 2-minute yard quiz