Grass or grass-like · Cyperaceae
Softstem bulrush
Schoenoplectus tabernaemontani
Softstem bulrush is recorded as native to 51 states and territories in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in 1,349 counties of those states by USDA PLANTS.
Key facts · USDA PLANTS
Softstem bulrush at a glance
- Native in
- 1,349 counties, across 51 states and territories
- Estimated cold hardiness
- Zone 3b PLANTS minimum temperature −38°F
- Mature height
- 9 ft PLANTS mature height
- Light and water
- Full sun (shade-intolerant) High water use
Estimated cold hardiness: zone 3b. PLANTS gives a minimum temperature of −38°F; zone 3b winters bottom out at −35°F, the coldest half-zone that stays within that limit.
Softstem bulrush is recorded as native to 51 states and territories in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in 1,349 counties of those states by USDA PLANTS.
Counties where it is native
The 15 counties with the most ZIP codes among the 1,349 where it is listed.
Native counties by state
- Alabama 1 county
- Alaska 9 counties
- Arizona 10 counties
- Arkansas 7 counties
- California 17 counties
- Colorado 27 counties
- Connecticut statewide record
- Delaware 3 counties
- District of Columbia 1 county
- Florida 33 counties
- Georgia 5 counties
- Hawaii 3 counties
- Idaho 8 counties
- Illinois 71 counties
- Indiana 52 counties
- Iowa 18 counties
- Kansas 79 counties
- Kentucky 41 counties
- Louisiana 16 counties
- Maine 15 counties
- Maryland 1 county
- Massachusetts 14 counties
- Michigan 62 counties
- Minnesota 68 counties
- Mississippi 2 counties
- Missouri 54 counties
- Montana 25 counties
- Nebraska 51 counties
- New Hampshire 10 counties
- New Jersey 21 counties
- New Mexico 7 counties
- New York 47 counties
- North Carolina 37 counties
- North Dakota 50 counties
- Ohio 66 counties
- Oklahoma 9 counties
- Oregon 20 counties
- Pennsylvania 61 counties
- Rhode Island 4 counties
- South Carolina 9 counties
- South Dakota 36 counties
- Tennessee 24 counties
- Texas 25 counties
- Utah 14 counties
- Vermont 13 counties
- Virginia 71 counties
- Washington 12 counties
- West Virginia 25 counties
- Wisconsin 67 counties
- Wyoming 18 counties
- Puerto Rico 10 counties
Growing traits
Values from the PLANTS characteristics record. “Not recorded” means PLANTS has no value; nothing here is estimated except the zone.
Growth
- Growth habit
- Graminoid
- Duration
- Perennial
- Mature height
- 9 ft
- Growth rate
- Rapid
- Growth form
- Rhizomatous
- Shape
- Erect
- Lifespan
- Long
- Active growth period
- Spring, Summer, Fall
Light and water
- Shade tolerance
- Intolerant (full sun (shade-intolerant))
- Moisture use
- High water use
- Drought tolerance
- None
- Tolerance of waterlogged soil
- High
- Precipitation range
- 18 to 55 in per year
Soil
- Soil textures
- Coarse, medium and fine
- pH range
- 5.4 to 7.5
- Lime (CaCO₃) tolerance
- Medium
- Salinity tolerance
- Low
- Fertility requirement
- Low
- Minimum root depth
- 16 in
Climate
- Minimum temperature
- −38°F
- Estimated cold hardiness
- Zone 3b and warmer
- Minimum frost-free days
- 80
- Fire tolerance
- High
Flowers, leaves and fruit
- Flower color
- Red
- Showy flowers
- No
- Bloom period
- Late Spring
- Foliage color
- Green
- Showy in fall
- No
- Keeps leaves
- No
- Fruit color
- Green
Other
- Toxicity
- None
- Nitrogen fixation
- None
- Nursery availability
- Routinely Available
- Family
- Cyperaceae
- PLANTS symbol
- SCTA2
Source & data date
- Source
- USDA NRCS PLANTS Database: county distribution records, native status and plant characteristics. CC0 (public domain dedication, per the data.gov catalog record).
- Kew’s World Checklist of Vascular Plants (WCVP): native or introduced status by state. CC BY 3.0.
- USGS US-RIIS (ver. 2.0): species listed as introduced are excluded. CC0.
- Citation
- USDA, NRCS. 2026. The PLANTS Database (https://plants.usda.gov, 11/04/2026). National Plant Data Team, Greensboro, NC USA.
- Govaerts R. (ed.) (2026). WCVP: World Checklist of Vascular Plants. Facilitated by the Royal Botanic Gardens, Kew. Data file dated 2026-06-04, http://sftp.kew.org/pub/data-repositories/WCVP/ (retrieved 2026-11-04). Paper: Govaerts R. et al. (2021) The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. Scientific Data 8, 215.
- Data date
- Retrieved from PLANTS on November 4, 2026; WCVP data file dated June 4, 2026.
- Scope
- Schoenoplectus tabernaemontani (PLANTS symbol SCTA2).
- Method
- A species is listed when it is recorded as native to the state in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in the county by USDA PLANTS. Species PLANTS labels both native and introduced are listed separately. Full method · All sources