In USDA zone 3, the last spring frost usually falls between May 5 and May 31. Sow or plant potatoes around May 10 to Jun 10. Expect to harvest around Aug 16 to Oct 16.
| Sow or plant outside | May 10 to Jun 10 |
|---|---|
| Harvest | Aug 16 to Oct 16 |
| Typical last spring frost | May 5 to May 31 |
| Typical first fall frost | around Sep 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 potatoes in your exact town, not just your zone.
Get my dates free →Plant in spring, dig buried treasure. Read the full potatoes growing guide: spacing, sun and soil, step-by-step care, problems and the best varieties.