Western Giant Hyssop

Agastache occidentalis

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Lamiaceae
Genus:
Agastache
Species:
Agastache occidentalis

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb , Subshrub
Height:
2-3 ft
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
jun, jul, aug
Bloom Colors:
White, Purple

Native Range

United States: Oregon, Washington

Reported Fauna Sightings

Bees: Central bumble bee (Bombus centralis), Central bumble bee (Bombus centralis), van Dyke bumble bee (Bombus vandykei), van Dyke bumble bee (Bombus vandykei), 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), Yellow-faced bumble bee (Bombus vosnesenskii), Yellow-faced bumble bee (Bombus vosnesenskii)

Soil Requirements

Soil Type:
well-drained, sandy or rocky soil
pH:
6.0 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
native to dry, open slopes and ridges

Germination Information

Pre-treatment: Single-step cold-moist stratification for temperate woodland species. for 60–120 days

Source: OpenAI GPT-4o