Amur Corktree
Phellodendron amurense
Also known as: Japanese Corktree
- Native to:
- China, Japan, Korea, Kuril Is., Russia, Taiwan
Bruce Marlin
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Rutaceae
- Genus:
- Phellodendron
- Species:
- Phellodendron amurense
- USDA Symbol:
- PHAM2
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Tree
- Height:
- 1500 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- High
- Bloom Months:
- may,jun
- Bloom Colors:
- yellow, green
Wildlife Benefits
- Caterpillars:
- ★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)
Host Plant for Caterpillars
Walker’s Atlas Moth (Samia walkeri)
Garden & Ecology Notes
- Wildlife Value:
- birds
- Deer Resistant:
- Yes
- Salt Tolerant:
- Yes
- Fall Color:
- yellow
Soil Requirements
- Soil Type:
- rich, well-drained loamy soil
- pH:
- 5.5 - 7.5 (slightly acidic to neutral)
- Drainage:
- good drainage required
- Moisture:
- consistently moist
- Notes:
- prefers fertile soil with organic matter
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 60–90 days
- Germination Time:
- 14–42 days
- Notes:
- Seeds germinate readily after cold stratification. Light may improve germination rates.
The above propagation data sourced from Claude AI
ORGHPS Germination Guide: Expose to fluctuating outdoor winter temps incl. freezing for 3 months. Increase light/temp in spring. Pulpy coat -- soak & rinse daily 7 days to remove.