Manchurian Walnut

Juglans mandshurica

Native to:
China, Japan, Korea, Kuril Is., Russia, Taiwan

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Juglandaceae
Genus:
Juglans
Species:
Juglans mandshurica
USDA Symbol:
JUMA8

Growth Characteristics

Height:
2500 cm
Light Requirements:
Full Sun
Drought Tolerance:
Medium
Bloom Months:
apr,may

Keystone Species Ranking

Caterpillar Keystone:
★★★★★ Butterfly & moth species supported by this genus (NWF)

Garden & Ecology Notes

Wildlife Value:
squirrels, birds, small mammals
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:
excellent drainage required
Moisture:
consistently moist
Notes:
prefers fertile soils with good organic content

Propagation & Germination

Stratification:
Cold/moist stratification required — 90–120 days
Germination Time:
14–60 days
Notes:
Seeds require cold stratification; may show delayed or erratic germination. Best sown outdoors in fall for natural stratification.

The above propagation data sourced from Claude AI