Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Araceae

Genus:

Arisaema

Species:

Arisaema japonicum

USDA Symbol:

ARJA3

Growth Characteristics

Height:

50 cm

Light Requirements:

Part Shade

Drought Tolerance:

Low

Bloom Months:

apr,may,jun

Bloom Colors:

green, purple

Garden & Ecology Notes

Wildlife Value:

small mammals, insects

Deer Resistant:

Yes

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 shaded woodland areas

Propagation & Germination

Stratification:

Warm then cold/moist stratification (double dormancy) — 60–120 days

Germination Time:

30–90 days

Notes:

Seeds require warm stratification followed by cold period. Fresh seed germinates better than stored seed. May take two years to germinate.

The above propagation data sourced from Claude AI