When to plant Potato in Zone 4a
In Zone 4a, Potato: direct sow outdoors around May 1–May 29. Expect to harvest around Jul 30–Aug 27.
| Step | When |
|---|---|
| Direct sow outdoors | May 1 – May 29 |
| Harvest | Jul 30 – Aug 27 |
Tip: Plant seed potatoes around the last frost and hill soil over the stems as they grow.
Zone 4a averages a last spring frost around May 15 and a first fall frost around Sep 18. These are zone averages — look up your ZIP for your exact area.
See the full Zone 4a calendar in the tool →