Sapium japonicum

Neoshirakia japonica

Native to:
China, Japan, Korea, Nansei-shoto

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Euphorbiaceae
Genus:
Neoshirakia
Species:
Neoshirakia japonica
USDA Symbol:
SAJA8

Growth Characteristics

Height:
900 cm
Light Requirements:
Full Sun
Drought Tolerance:
Medium
Bloom Months:
may,jun
Bloom Colors:
yellow, green

Garden & Ecology Notes

Wildlife Value:
birds
Deer Resistant:
Yes
Fall Color:
red, orange, purple

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
5.5 - 7.0 (slightly acidic to neutral)
Drainage:
excellent 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 require cold stratification for best germination rates.

The above propagation data sourced from Claude AI