Arisaema

Arisaema tortuosum

Native to:
China, India, Myanmar, Nepal, Pakistan, Sri Lanka

📍 View on iNaturalist →

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Araceae
Genus:
Arisaema
Species:
Arisaema tortuosum
USDA Symbol:
ARTO7

Growth Characteristics

Height:
120 cm
Light Requirements:
Part Shade
Drought Tolerance:
Medium
Bloom Months:
apr,may,jun
Bloom Colors:
green, purple

Garden & Ecology Notes

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:
native to forested areas with high organic matter

Propagation & Germination

Stratification:
Cold/moist then warm stratification (double dormancy) — 60–90 days
Germination Time:
30–60 days
Notes:
Seeds require a period of cold stratification followed by warm temperatures to break dormancy.

ORGHPS Germination Guide: Sow @ 20°C. Seed germinates within 3 months Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water for approximately 7 days. Discard water. * sow thinly, keep dry when dormant, leave in pot for 2 years

Source: Ontario Rock Garden & Hardy Plant Society