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How to Grow Japanese Yam: Growing Guide to Planting, Care & Harvest

A climbing vine grown for a long sticky root, often raised in a pipe or bag so the brittle tuber can be lifted unbroken.

Japanese Yam

Dioscorea japonica

Growing calendar

Typical timing for central Japan (Kanto region). Shift it for your own climate, and record your actual dates.

JanFebMarAprMayJunJulAugSepOctNovDec

Sow / plantGrowingHarvest

Guides

Common problems

Start from what you can see on the plant.

Wilting Yellow leaves Leaves dying Leaf spots Fruit problems

Pests and diseases (29)

Brown Leaf Spot Rust Southern Blight Anthracnose Bacterial Soft Rot Root-lesion Nematode Root Rot Root-knot Nematode Gray Mold Leaf SpotNecrotic MosaicNorthern Corn Leaf BlightScabStubby-root NematodePythium RotMosaic DiseaseTyphula Snow BlightPlant-parasitic NematodesZonate Leaf BlightPink RootBacterial RotLeaf BlightFoliar NematodeLeaf Blemish DiseaseUnderside Sooty SpotBrown Spot Root RotBrown RotBlue MoldBlackening Disorder

Written byYasuGrowing vegetables and fruit in Chiba, Japan, and building Gadenin. Corrections are welcome. 15 years of growing.

Read next

Japanese Yam Plant WiltingWilting Japanese Yam Leaves Turning YellowYellow leaves Tomato plant guideMadeira Vine plant guide

Keep a growing history for Japanese Yam

Type the plant name, add the planting date, and take photos as it grows. Next season you will have your own dates for sowing, flowering, and harvest instead of a generic calendar.

Record this plant in Gadenin App Store

Free on iPhone. Android coming later.

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