Floating Bur-reed
Sparganium angustifolium
Last reviewed: June 2026
Light
full sun
Water
high
Size
6"–24" H × 12"–36" W
Bloom
Jul, Aug, Sep
Native to
AZ, CA, CO, CT and 16 more states
Browse plants for this ecoregion
Floating bur-reed is an aquatic perennial that grows in ponds, wetlands, and water gardens. It produces narrow grass-like leaves and small spherical flower clusters during summer months. This plant requires standing water or consistently saturated soil to thrive.
In an HOA neighborhood
Floating Bur-reed takes more care to keep looking intentional in a front yard. Maintenance level: high. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Requires water feature or bog conditions
- Limited to specialized aquatic installations
- May appear unkempt without proper water management
Wildlife value
Provides habitat for waterfowl and aquatic insects. The seeds attract ducks and other water birds, while the submerged portions offer shelter for fish and amphibians.
Common questions
- How much sun does Floating Bur-reed need?
- Floating Bur-reed grows best in full sun conditions.
- When does Floating Bur-reed bloom?
- Floating Bur-reed blooms in July, August, and September.
- Where is Floating Bur-reed native?
- Floating Bur-reed (Sparganium angustifolium) is native to AZ, CA, CO, CT and 16 more states, per the USDA PLANTS Database and regional native plant society lists.
- Is Floating Bur-reed HOA-friendly?
- Floating Bur-reed 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 Floating Bur-reed? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
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