Home › Crops › Sweet Corn › Zone 10a
When to plant sweet corn in Zone 10a
In Zone 10a, direct-sow around January 15 – January 29.
Your sweet corn timeline — Zone 10a
| Direct-sow | January 15 – January 29 |
|---|---|
| Zone 10a last frost | ~01/15 |
| Zone 10a first frost | ~12/02 |
Direct-sow when soil warms to 60°F (after the last frost). [src]Cited: University of New Hampshire Cooperative Extension — “Growing Vegetables: When to Plant Your Vegetable Garden”
Dates computed from Zone 10a's median NOAA frost normals and the cited rule. Your town may differ by a week or two — check your exact ZIP.
What you'll need
Affiliate links — as an Amazon Associate we may earn from qualifying purchases, at no extra cost to you.
Last verified 2026-07-16. Frost: NOAA NCEI 1991–2020. Zone: USDA 2023. Rule: University of New Hampshire Cooperative Extension — “Growing Vegetables: When to Plant Your Vegetable Garden”; UGA Extension (days to maturity).