Wildflower (forb) · Asteraceae
Dense blazing star
Liatris spicata · includes its varieties and subspecies
Dense blazing star is recorded as native to 25 states and territories in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in 383 counties of those states by USDA PLANTS.
Key facts · USDA PLANTS
Dense blazing star at a glance
- Native in
- 383 counties, across 25 states and territories
- Estimated cold hardiness
- Zone 5b PLANTS minimum temperature −18°F
- Mature height
- 4.5 ft PLANTS mature height
- Light and water
- Sun to part shade Medium water use
Estimated cold hardiness: zone 5b. PLANTS gives a minimum temperature of −18°F; zone 5b winters bottom out at −15°F, the coldest half-zone that stays within that limit.
Dense blazing star is recorded as native to 25 states and territories in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in 383 counties of those states by USDA PLANTS.
Counties where it is native
The 15 counties with the most ZIP codes among the 383 where it is listed.
Native counties by state
- Alabama 7 counties
- Arkansas 1 county
- Connecticut statewide record
- Delaware 2 counties
- Florida 50 counties
- Georgia 23 counties
- Illinois 21 counties
- Indiana 35 counties
- Kentucky 22 counties
- Louisiana 10 counties
- Maryland 1 county
- Massachusetts 4 counties
- Michigan 26 counties
- Mississippi 7 counties
- Missouri 1 county
- New Jersey 13 counties
- New York 10 counties
- North Carolina 19 counties
- Ohio 24 counties
- Pennsylvania 23 counties
- South Carolina 12 counties
- Tennessee 29 counties
- Virginia 27 counties
- West Virginia 9 counties
- Wisconsin 7 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
- Forb/herb
- Duration
- Perennial
- Mature height
- 4.5 ft
- Growth rate
- Slow
- Growth form
- Rhizomatous
- Shape
- Erect
- Lifespan
- Moderate
- Active growth period
- Summer
Light and water
- Shade tolerance
- Intermediate (sun to part shade)
- Moisture use
- Medium water use
- Drought tolerance
- Low
- Tolerance of waterlogged soil
- Medium
- Precipitation range
- 35 to 60 in per year
Soil
- Soil textures
- Medium and fine
- pH range
- 5.6 to 7.5
- Lime (CaCO₃) tolerance
- Low
- Salinity tolerance
- Low
- Fertility requirement
- Low
- Minimum root depth
- 14 in
Climate
- Minimum temperature
- −18°F
- Estimated cold hardiness
- Zone 5b and warmer
- Minimum frost-free days
- 165
- Fire tolerance
- High
Flowers, leaves and fruit
- Flower color
- Purple
- Showy flowers
- Yes
- Bloom period
- Late Summer
- Foliage color
- Green
- Showy in fall
- No
- Keeps leaves
- No
- Fruit color
- Brown
Other
- Toxicity
- None
- Nitrogen fixation
- None
- Nursery availability
- Routinely Available
- Family
- Asteraceae
- PLANTS symbol
- LISP
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
- Liatris spicata (PLANTS symbol LISP), including 1 variety or subspecies folded into the species.
- 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