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Swaying Bulrush

Schoenoplectus subterminalis

Last reviewed: August 2026

Swaying Bulrush (Schoenoplectus subterminalis)
Photo: (c) naturalist charlie, some rights reserved (CC BY), uploaded by naturalist charlie

Toxicity unknown

Swaying Bulrush (Schoenoplectus subterminalis) 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.

Light

part sun

Water

high

Size

12"–48" H × 6"–24" W

Bloom

Jun, Jul, Aug

Native to

AL, CA, CT, DE and 26 more states

Before you buy

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Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 459 programs across 44 states, each with a link to the provider and the date we last checked it.

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Browse plants for this ecoregion

Northern Lakes and ForestsNorth Central Hardwood ForestsSoutheastern Wisconsin Till PlainsSouthern Michigan/Northern Indiana Drift PlainsNortheastern HighlandsNortheastern Coastal ZoneNorthern Allegheny PlateauNorthern ForestsMiddle Atlantic Coastal PlainSoutheastern PlainsRidge and ValleyAcadian Plains and HillsEastern Great Lakes LowlandsAtlantic Coastal Pine Barrens

Schoenoplectus subterminalis is a native sedge that forms clumps of slender, grass-like stems in wet areas. It thrives in consistently moist to waterlogged soils and produces small brown flower clusters during summer months. This plant is best suited for rain gardens, pond edges, or other water features where its high moisture requirements can be met.

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In an HOA neighborhood

Swaying 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.

  • Requires constant moisture or standing water
  • Looks very wild and unmaintained
  • May be seen as swamp vegetation

Wildlife value

This sedge provides habitat and nesting material for waterfowl and supports various aquatic insects. The seeds offer food for ducks and other water birds.

Common questions

How much sun does Swaying Bulrush need?
Swaying Bulrush grows best in part sun conditions.
When does Swaying Bulrush bloom?
Swaying Bulrush blooms in June, July, and August.
Where is Swaying Bulrush native?
Swaying Bulrush (Schoenoplectus subterminalis) is native to AL, CA, CT, DE and 26 more states, per the World Checklist of Vascular Plants (Kew).
Is Swaying Bulrush HOA-friendly?
Swaying Bulrush 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 World Checklist of Vascular Plants (Kew). 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.

See all plant problem guides

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