Wild Yam
Dioscorea villosa
Also listed as Dioscorea hirticaulis, Dioscorea sativa
Also known as Wild Yam Root, Colic Root, Four-leaved Yam
Climate Match for your location
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A native North American twining vine with heart-shaped leaves and small greenish flowers followed by distinctive winged seed pods. The rhizomes have been traditionally used in herbal medicine.
Why grow it
Wild yam establishes readily from rhizome divisions in woodland or semi-shaded garden settings where other perennial vines may struggle, making it useful for slope stabilization or vertical screening. Compared to ornamental Dioscorea species, D. villosa is cold-hardy to zone 4 and requires minimal inputs once established. The rhizomes develop substantial biomass over 3-4 years, which some growers manage for propagation purposes.
Watch out for
The vines grow vigorously once established and can outcompete nearby plants if not contained; plan for annual pruning or physical barriers in mixed plantings. Rhizome harvest timing affects plant survival, so wait until plants are mature (at least 3-4 years old) before considering any rhizome removal. The plant prefers consistent moisture and will decline in very dry soils or full afternoon sun in hot climates.
Overview
- Form
- Growth Rate
- Size
- Dormancy
- Family
- Dioscoreaceae
Native to the United States
Native Range
Eastern North America
Native to: Alabama, Arkansas, Connecticut, District of Columbia, Delaware, Florida, Georgia, Iowa, Illinois, Indiana, Kansas, Kentucky, Louisiana, Massachusetts, Maryland, Michigan, Minnesota, Missouri, Mississippi, North Carolina, Nebraska, New Jersey, New York, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, Tennessee, Texas, Virginia, Vermont, Wisconsin, West Virginia
Seasonality
Bloom Season
Harvest Season
Edible Parts
Season of Interest
Climber
Vines that climb the layers above on a support.
Succession Role
Tolerances & Soil
Establishment & Care
- Establishment
- Maintenance
- Propagation
A native North American twining vine with heart-shaped leaves and small greenish flowers followed by distinctive winged seed pods. The rhizomes have been traditionally used in herbal medicine.
Climate Match for your location
See how well Wild Yam grows in your area.
Enter your ZIP code and we'll show you how this plant fits your local climate.
Why grow it
Wild yam establishes readily from rhizome divisions in woodland or semi-shaded garden settings where other perennial vines may struggle, making it useful for slope stabilization or vertical screening. Compared to ornamental Dioscorea species, D. villosa is cold-hardy to zone 4 and requires minimal inputs once established. The rhizomes develop substantial biomass over 3-4 years, which some growers manage for propagation purposes.
Watch out for
The vines grow vigorously once established and can outcompete nearby plants if not contained; plan for annual pruning or physical barriers in mixed plantings. Rhizome harvest timing affects plant survival, so wait until plants are mature (at least 3-4 years old) before considering any rhizome removal. The plant prefers consistent moisture and will decline in very dry soils or full afternoon sun in hot climates.
Overview
- Form
- Growth Rate
- Size
- Dormancy
- Family
- Dioscoreaceae
Native to the United States
Native Range
Eastern North America
Native to: Alabama, Arkansas, Connecticut, District of Columbia, Delaware, Florida, Georgia, Iowa, Illinois, Indiana, Kansas, Kentucky, Louisiana, Massachusetts, Maryland, Michigan, Minnesota, Missouri, Mississippi, North Carolina, Nebraska, New Jersey, New York, Ohio, Oklahoma, Pennsylvania, Rhode Island, South Carolina, Tennessee, Texas, Virginia, Vermont, Wisconsin, West Virginia
Seasonality
Bloom Season
Harvest Season
Edible Parts
Season of Interest
Climber
Vines that climb the layers above on a support.
Succession Role
Tolerances & Soil
Establishment & Care
- Establishment
- Maintenance
- Propagation
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