In USDA zone 5, the last spring frost usually falls between Apr 10 and May 10. Sow or plant sweet potatoes around May 24 to Jun 17. Expect to harvest around Sep 23 to Oct 15.
| Sow or plant outside | May 24 to Jun 17 |
|---|---|
| Harvest | Sep 23 to Oct 15 |
| Typical last spring frost | Apr 10 to May 10 |
| Typical first fall frost | around Oct 15 |
USDA zones measure winter cold, not frost dates, so these are typical dates for the zone. Towns in the same zone can be weeks apart.
Get dates for sweet potatoes in your exact town, not just your zone.
Get my dates free →Heat-loving roots that store for months. Read the full sweet potatoes growing guide: spacing, sun and soil, step-by-step care, problems and the best varieties.