6a When to plant zucchini & summer squash in zone 6a
Zone 6a median last spring freeze: May 1 · first fall freeze: Oct 10 · harvest in ~45-60 days.
| Step | Zone 6a dates | Note |
|---|---|---|
| Start seeds indoors | Apr 10 – Apr 24 | 6–10 weeks before transplanting |
| Transplant outside | May 8 | after last spring freeze |
| Direct sow (spring) | Apr 24 | before last spring freeze |
How zucchini & summer squash grow in zone 6a
Direct sow or transplant both work. Tender — damaged by any frost. Harvest runs roughly 45-60 days after planting. These windows come from extension planting tables anchored to zone 6a's median freeze dates — for varieties and local conditions, check with your local extension office.
Next: the full zone 6a calendar · other crops in zone 6a: tomatoes · peppers · cucumbers · winter squash & pumpkins · snap beans · sweet corn · peas · lettuce · spinach · 5 more