Western Sweetshrub

Calycanthus occidentalis

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Calycanthaceae
Genus:
Calycanthus
Species:
Calycanthus occidentalis

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Shrub
Height:
12-20 ft
Light Requirements:
Full Sun, Part Shade
Drought Tolerance:
Low
Bloom Months:
apr, may, jun, jul, aug, sep, oct
Bloom Colors:
Red, Pink, Brown
Evergreen Shrub:
Yes
Landscaping Shrub:
Yes

Native Range

United States: California, Washington

Host Plant for Caterpillars

Saddleback Caterpillar Moth (Acharia stimulea)

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
5.5 - 7.0 (slightly acidic to neutral)
Drainage:
tolerates poor drainage
Moisture:
consistently moist
Notes:
Prefers riparian zones and can tolerate seasonal flooding.

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