Colorado Larkspur

Delphinium alpestre

Colorado Larkspur

Matt Lavin

Taxonomy

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

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Geophyte
Height:
6 in - 1 ft
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
jun, jul, aug
Bloom Colors:
Blue

Native Range

United States: Colorado, New Mexico

Soil Requirements

Soil Type:
rocky, well-drained, calcareous soil
pH:
6.0 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
native to alpine regions with limestone substrates

Germination Information

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

Source: OpenAI GPT-4o