Glutinous Yam, scientifically known as Dioscorea japonica, is a perennial plant native to regions including Assam, China South-Central and Southeast, Japan, Korea, and Taiwan. It thrives in moist environments with light soil types—ranging from sandy to heavy clay—and prefers full sun exposure. This plant can grow up to 3 meters tall and is both edible and medicinal. Its leaves and roots are used for consumption, while its medicinal properties have been documented. Known for its adaptability and versatility, Glutinous Yam is a notable addition to gardens or agricultural settings in its native range.
Glutinous Yam, scientifically known as Dioscorea japonica, is a perennial plant native to regions including Assam, China South-Central and Southeast, Japan, Korea, and Taiwan. It thrives in moist environments with light soil types—ranging from sandy to heavy clay—and prefers full sun exposure.
Start with basic care for Glutinous Yam, focusing on soil preparation and watering.
Seeds or tubers, a garden fork, compost.
Plant in spring after the last frost, when temperatures are mild.
Choose a location with light to medium soil that is moist but well-draining. Ensure full sun exposure.
Plant tubers 15-20 cm deep, spaced about 60 cm apart in rows 90 cm apart.
Keep the soil consistently moist. Water regularly to maintain moisture but avoid overwatering.
Water deeply once a week, especially during dry spells. Mulch around plants to retain moisture and suppress weeds.
Prune vines in late autumn after the foliage has died back. Harvest tubers carefully from the soil.
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