Sweet potato
Ipomoea batatas
In a typical UK garden, plant out early May to early June, and harvest mid-September to late October.
When to sow, plant and harvest
Last frost around 20 April, first frost around 31 October.
- Plant out
- early May to early June
- Harvest
- mid-September to late October
Growing facts
- Spacing
- 30 cm apart, rows 90 cm apart
- Square foot
- 1 per square (30 cm squares)
- Sowing depth
- Grown from plants, sets or crowns
- Ready in
- 90 to 140 days from planting
- Grows to
- 30 cm
- Hardiness
- Tender: killed by any frost
- Sun
- Full sun
- Crops for
- One harvest
Growing tip
Plant slips into warm soil, ideally through black plastic or under fleece, and dig before the first frost.
More roots
Where these figures come from
Every crop in VegLog was checked against published growing advice. Dates are worked out from average frost dates, so they shift with your garden. For sweet potato, we used:
Grow sweet potato with VegLog
Add sweet potato to a bed and VegLog reminds you when to sow, plant out and pick, timed to your own town's frost dates.
