Castor Aralia

Kalopanax septemlobus

Native to:
China, Japan, Korea, Kuril Is., Nansei-shoto, Russia

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Araliaceae
Genus:
Kalopanax
Species:
Kalopanax septemlobus
USDA Symbol:
KASE

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Tree
Height:
2500 cm
Light Requirements:
Full Sun
Drought Tolerance:
Medium
Bloom Months:
jul,aug
Bloom Colors:
white

Garden & Ecology Notes

Wildlife Value:
birds, bees
Deer Resistant:
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 soils with organic matter

Propagation & Germination

Stratification:
Warm then cold/moist stratification (double dormancy) — 120–180 days
Germination Time:
30–90 days
Notes:
Seeds exhibit double dormancy requiring warm stratification followed by cold stratification. Germination can be erratic and may take two years.

ORGHPS Germination Guide: Sow @ 4C for 3 weeks, then place @ 20C.

Source: Ontario Rock Garden & Hardy Plant Society