Sweet Corn in Zone 10a
Zea mays
| Window | Spring window |
|---|---|
| Start indoors | Not typically started indoors |
| Direct sow / transplant outside | Feb–Mar |
| Estimated harvest | ~75 days after direct-sowing |
| Window | Monsoon window |
|---|---|
| Start indoors | Not typically started indoors |
| Direct sow / transplant outside | Jul–Aug |
| Estimated harvest | ~75 days after direct-sowing |
Spacing: 1 per square foot (square-foot-gardening spacing).
Zone 10a dates sourced from growinginthegarden.com.
Good companions
- Bush Beans — Classic 'three sisters' — beans climb corn stalks and fix nitrogen.
- Winter Squash — Squash vines shade the soil, suppressing weeds around corn.
Where to buy sweet corn seeds
Some links on this page go to retailers we may eventually earn a commission from as an affiliate, at no extra cost to you. We only recommend products with a genuine consensus of positive, independent reviews — see the sources cited on each item.
See it growing
Search YouTube for "growing sweet corn" videos → (a live search, not a hand-picked video — results vary and aren't vetted by us)
← Back to the full zone 10a calendar · Full companion planting guide · Full plant profile · Plan your beds in the Garden Designer →