Fourleaf Yam

Dioscorea villosa

Native to:
Canada, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Dioscoreaceae
Genus:
Dioscorea
Species:
Dioscorea villosa
USDA Symbol:
DIQU

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb , Vine
Height:
500 cm
Drought Tolerance:
Medium
Bloom Months:
may,jun,jul
Bloom Colors:
yellow, green

Garden & Ecology Notes

Wildlife Value:
birds, small mammals
Deer Resistant:
Yes
Fall Color:
yellow

Propagation & Germination

Stratification:
Cold/moist stratification required — 60–120 days
Germination Time:
14–60 days
Notes:
Seeds require cold stratification and may germinate erratically over an extended period.

The above propagation data sourced from Claude AI

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

Source: Ontario Rock Garden & Hardy Plant Society