Shrub · Clusiaceae
Peelbark St. Johnswort
Hypericum fasciculatum
Peelbark St. Johnswort is recorded as native to 7 states and territories in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in 145 counties of those states by USDA PLANTS.
Key facts · USDA PLANTS
Peelbark St. Johnswort at a glance
- Native in
- 145 counties, across 7 states and territories
- Estimated cold hardiness
- Zone 7b PLANTS minimum temperature 4°F
- Mature height
- 5 ft PLANTS mature height
- Light and water
- Full sun (shade-intolerant) Moisture use not recorded
Estimated cold hardiness: zone 7b. PLANTS gives a minimum temperature of 4°F; zone 7b winters bottom out at 5°F, the coldest half-zone that stays within that limit.
Peelbark St. Johnswort is recorded as native to 7 states and territories in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in 145 counties of those states by USDA PLANTS.
Counties where it is native
The 15 counties with the most ZIP codes among the 145 where it is listed.
Native counties by state
- Alabama 10 counties
- Florida 62 counties
- Georgia 32 counties
- Louisiana 13 counties
- Mississippi 4 counties
- North Carolina 9 counties
- South Carolina 15 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
- Shrub, Subshrub
- Duration
- Perennial
- Mature height
- 5 ft
- Growth rate
- Moderate
- Growth form
- Single Stem
- Shape
- Erect
- Lifespan
- Short
- Active growth period
- Not recorded
Light and water
- Shade tolerance
- Intolerant (full sun (shade-intolerant))
- Moisture use
- Not recorded
- Drought tolerance
- High
- Tolerance of waterlogged soil
- Low
- Precipitation range
- 33 to 70 in per year
Soil
- Soil textures
- Coarse
- pH range
- Not recorded
- Lime (CaCO₃) tolerance
- Not recorded
- Salinity tolerance
- Not recorded
- Fertility requirement
- Not recorded
- Minimum root depth
- 12 in
Climate
- Minimum temperature
- 4°F
- Estimated cold hardiness
- Zone 7b and warmer
- Minimum frost-free days
- 20
- Fire tolerance
- Not recorded
Flowers, leaves and fruit
- Flower color
- Yellow
- Showy flowers
- Yes
- Bloom period
- Spring
- Foliage color
- Green
- Showy in fall
- No
- Keeps leaves
- No
- Fruit color
- Brown
Other
- Toxicity
- Not recorded
- Nitrogen fixation
- None
- Nursery availability
- Not recorded
- Family
- Clusiaceae
- PLANTS symbol
- HYFA
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
- Hypericum fasciculatum (PLANTS symbol HYFA).
- 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