Japanese mountain yam
6Will it grow where I live?
Japanese mountain yam is hardy to zone 4 – that covers all of Central Europe and the British Isles, and every USDA zone from 4 upwards.
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Profile
- Family
- Dioscoreaceae
- Habit
- Climber
- Height
- 5 m
- Spread
- 3 m
- Growth
- fast
- Lifespan
- 10 years
- First yield
- after 1 year
- Hardiness
- zone 4–10
- Shade tolerance
- full sun
- Soil
- Sand, Silt, Loam, Clay
- Soil moisture
- semi-dry – very moist
- pH
- 5.5 – 7
Uses
Frequently asked questions
Japanese mountain yam: how big does it get?
Japanese mountain yam (Dioscorea japonica) grows as a Climber and reaches roughly 5 m in height when mature, with a spread of about 3 m. Growth is fast.
Japanese mountain yam: what site does it need?
Japanese mountain yam tolerates full sun. Suitable soils are Sand, Silt, Loam, Clay. Soil moisture should be in the range semi-dry – very moist. The pH may lie between 5.5 and 7.
Japanese mountain yam: is it hardy?
Japanese mountain yam is listed as hardy in zone 4–10 and survives normal winters outdoors there.
Japanese mountain yam: will it grow in Central Europe?
Japanese mountain yam is hardy to zone 4 – that covers all of Central Europe and the British Isles, and every USDA zone from 4 upwards.
Japanese mountain yam: is it poisonous?
No toxicity is recorded for Japanese mountain yam. With wild plants, never rely on a database alone — only on a confident identification.
Japanese mountain yam: what is it used for?
Rated on a scale up to 10: Medicinal 6/10.
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