Index / Search / Lupinus havardii
§1 Plant
Lupinus havardii S. Watson
vernacular Big Bend bluebonnet — species · Fabaceae
§2Habit & range
Habit and range
- Growth habit
- Forb/herb
- Duration
- Annual
- Group
- Dicot
- Family
- Fabaceae Lindl.
- Genus
- Lupinus
§2a
Native status, by region
- L48 Lower 48 States Native
§2b
County-level range
· 3 counties across 1 state§3Cultivation specs · USDA
Recorded by the USDA Plant Materials Program.
§3a
Tolerances
- Drought
- High
- Shade
- Medium
- Moisture use
- Low
- Fire
- High
- Salinity
- None
- Anaerobic
- None
- CaCO₃
- High
- Hedging
- High
§3b
Climate & soil
- Cold tolerance
- -23 °F minimum
- Frost-free days
- 240 min.
- Precipitation
- 8–20 in/yr
- pH range
- 7.5–8
- Root depth
- 6 in min.
- Fertility need
- Low
- Soil texture
- coarse, medium
§3c
Form & growth
- Growth form
- Multiple Stem
- Growth rate
- Rapid
- Mature height
- 20 ft
- Foliage texture
- Fine
- Foliage colour
- Green
- Porosity (summer)
- Porous
- Porosity (winter)
- Porous
- Flower colour
- Blue
- Fruit colour
- Brown
- Fire resistant
- No
- N fixation
- Low
- Toxicity
- None
§3d
Reproduction
- Bloom period
- Early Spring
- Seed abundance
- Medium
- Seed begins
- Spring
- Seed ends
- Fall
- Spread rate
- Rapid
- Stratify
- No
- Seeds / lb
- 19,000
- Propagation
- seed, container
§3e
Use & availability
- Commercial availability
- No Known Source
- Nursery stock
- Yes
- Browse palatability
- Medium
- Graze palatability
- Medium
- Palatable, human
- No
- Protein potential
- Medium
- Lumber
- No
- Christmas tree
- No
§4Counties, by state
Recorded in 3 counties across 1 state.
Texas view state ↗ 3 N ▾
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/LUHA ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/2964312 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T14:17:10Z