Aristolochia contorta

Aristolochia contorta

Native to:
China | Japan | Korea | Russia | Vietnam

📍 View on iNaturalist →

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Aristolochiaceae
Genus:
Aristolochia
Species:
Aristolochia contorta

Growth Characteristics

Growth Habit:
Forb/herb
Height:
300 cm
Drought Tolerance:
Low
Bloom Months:
jun,jul,aug
Bloom Colors:
yellow-green, purple-brown

Garden & Ecology Notes

Wildlife Value:
butterflies, birds
Deer Resistant:
Yes

Source: deepseek-v4-flash

Propagation & Germination

Stratification:
Cold/moist stratification required — 60–90 days
Germination Time:
30–60 days
Notes:
Seeds require cold stratification for 2-3 months to break dormancy; sow in spring after last frost.

Source: deepseek-v4-flash

ORGHPS Germination Guide: Sow @ 20C. Germinates within 3 months.

Source: Ontario Rock Garden & Hardy Plant Society