Index / Search / Oenothera elata ssp. hookeri
§1 Plant
Oenothera elata Kunth ssp. hookeri (Torr. & A. Gray) W. Dietr. & W.L. Wagner
vernacular Hooker's evening primrose — subspecies · Onagraceae
§2Habit & range
Habit and range
- Growth habit
- Forb/herb
- Duration
- Biennial, Perennial
- Group
- Dicot
- Family
- Onagraceae Juss.
- Genus
- Oenothera
§2a
Native status, by region
- L48 Lower 48 States Native
§2b
County-level range
· 19 counties across 1 state§3Cultivation specs · USDA
Recorded by the USDA Plant Materials Program.
§3a
Tolerances
- Drought
- Medium
- Shade
- High
- Moisture use
- Low
- Fire
- None
- Salinity
- Low
- Anaerobic
- Low
- CaCO₃
- High
- Hedging
- None
§3b
Climate & soil
- Cold tolerance
- -23 °F minimum
- Frost-free days
- 140 min.
- Precipitation
- 10–15 in/yr
- pH range
- 7–8.5
- Root depth
- 6 in min.
- Fertility need
- Low
- Soil texture
- coarse, medium, fine
§3c
Form & growth
- Growth form
- Single Stem
- Growth rate
- Rapid
- Lifespan
- Moderate
- Mature height
- 5 ft
- Foliage texture
- Coarse
- Foliage colour
- Green
- Porosity (summer)
- Porous
- Porosity (winter)
- Porous
- Flower colour
- Yellow
- Fire resistant
- No
- N fixation
- None
- Toxicity
- None
§3d
Reproduction
- Bloom period
- Late Summer
- Seed abundance
- High
- Seed begins
- Summer
- Seed ends
- Fall
- Spread rate
- Moderate
- Stratify
- No
- Seeds / lb
- 1,400,000
- Propagation
- seed
§3e
Use & availability
- Commercial availability
- Contracting Only
- Nursery stock
- Yes
- Browse palatability
- Low
- Graze palatability
- Low
- Palatable, human
- No
- Protein potential
- Low
- Lumber
- No
- Christmas tree
- No
§4Counties, by state
Recorded in 19 counties across 1 state.
California view state ↗ 19 N ▾
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/OEELH2 ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/3666885 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T20:46:58Z