Delphinium occidentale

Delphinium occidentale

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Ranunculaceae
Genus:
Delphinium
Species:
Delphinium occidentale

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Geophyte
Height:
4-6 ft
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
jul, aug
Bloom Colors:
White, Blue, Purple

Native Range

United States: Colorado, Idaho, Montana, New Mexico, Nevada, Oregon, Utah, Washington, Wyoming

Reported Fauna Sightings

Bees: Central bumble bee (Bombus centralis), Central bumble bee (Bombus centralis), Frigid Bumble Bee (Bombus frigidus), Frigid Bumble Bee (Bombus frigidus), Fuzzy-horned bumble bee (Bombus mixtus), Fuzzy-horned bumble bee (Bombus mixtus), Nevada bumble bee (Bombus nevadensis), Nevada bumble bee (Bombus nevadensis), Two-form bumble bee (Bombus bifarius), Two-form bumble bee (Bombus bifarius), White-shouldered bumble bee (Bombus appositus), White-shouldered bumble bee (Bombus appositus), Yellow bumble bee (Bombus fervidus), Yellow bumble bee (Bombus fervidus), Yellow head bumble bee (Bombus flavifrons), Yellow head bumble bee (Bombus flavifrons)

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
6.0 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
consistently moist
Notes:
prefers organic matter-rich environments

Germination Information

Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).; then Cold-moist stratification for 60 days.

Notes: Seeds may require light for germination.

Source: OpenAI GPT-4o