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Sweet-potato

Yam Stat Summary

Plant Spacing: 16-20" (406-508 mm)
Row Spacing: 24-36" (609-914 mm)
Planting Depth: 2" (50 mm)
Plants Per Person: 2
Soil Temperature: °F (°C)
Days to Emergence:
Recommended Soil PH:
Earliest Outdoor Planting: After Last Frost

Planting Yam

Yams do not grow well in temperatures below 68 degrees F. Mix in 3 to 4 inches of garden compost or a basic vegetable garden fertilizer to amend the soil. Small tubers or sections containing two or three eyes are used to start yams.

Create a mound of soil approximately 10 inches tall and 24 inches to 36 inches across. If you're making more than one mound, space each mound apart by 2 to 3 feet. To plant, bury the yam tuber in the center of each mound, approximately 2 inches below the surface.

Growing Yam

Fertilize every two to four weeks with a good fertilizer that contains low levels of nitrogen and high levels of phosphorus.

Harvesting and Storing Yam

Harvest the yams 3 or 4 months after the plant sprouts; the leaves and stems start to die back. Use your hands and flatten the mound to expose the plant's underground tubers. Lift potatoes out of the soil with a shovel or pitchfork; taking care to avoid piercing the skin with your work tools. Wash, dry and store in a cool, dry place; the harvested yams can be stored up to six months without refrigeration.

Yam Insect and Disease Information

Use floating row covers to help discourage flea beetle invasions. Clean up debris in the fall will help reduce the risk of weevil and other insect populations. Deer are fond of yam vines.

Yam Yield Information

No yield information for Yam.
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