Japanese Barberry

Berberis thunbergii

Native to:
Japan

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Berberidaceae
Genus:
Berberis
Species:
Berberis thunbergii
USDA Symbol:
BETH

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Shrub
Height:
180 cm
Light Requirements:
Full Sun
Drought Tolerance:
Medium
Bloom Months:
apr,may
Bloom Colors:
yellow
Landscaping Shrub:
Yes

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Caterpillars:
★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)

Host Plant for Caterpillars

Mead's wave moth (Coryphista meadii)

Reported Fauna Sightings

Moths:Rheumaptera Hübner

Garden & Ecology Notes

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

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
5.5 - 7.0 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate

Propagation & Germination

Stratification:
Cold/moist stratification required — 60–90 days
Germination Time:
14–60 days
Notes:
Seeds may germinate erratically; cold stratification improves germination rates significantly.

The above propagation data sourced from Claude AI

ORGHPS Germination Guide: N Sow directly in the garden. Sow at 4°C for 3 months, then place @ 20°C for 3 months. Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water for approximately 7 days. Discard water. * wash clean 14 days, plant 2 cm deep

Source: Ontario Rock Garden & Hardy Plant Society