Bigcone Douglas-Fir

Pseudotsuga macrocarpa

Bigcone Douglas-Fir

Taxonomy

Division:
Coniferophyta | - Conifers
Family:
Pinaceae
Genus:
Pseudotsuga
Species:
Pseudotsuga macrocarpa

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Tree
Height:
More than 40 ft
Light Requirements:
Part Shade
Bloom Months:
mar, apr
Bloom Colors:
Yellow

Native Range

United States: California

Keystone Species Ranking

Caterpillar Keystone:
★☆☆☆☆ Based on number of butterfly and moth species using this genus as host plant (Source: National Wildlife Federation)

Soil Requirements

Soil Type:
rocky, well-drained, nutrient-poor soil
pH:
5.5 - 7.0 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
native to mountainous regions with poor soil fertility

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