When to plant corn in zone 7b — planting calendar

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Showing USDA Zone 7B

Growing SeasonZone 7b

Last frost ~Apr 5First frost ~Nov 1Today

Start indoorsTransplant / sowHarvestFrost risk

APRMAYJUNJUL

Sow Apr 19 · First harvest Jun 28 · Wrap by Jul 19

Last spring frostApr 5

Direct sowApr 19

First harvestJun 28

Last harvestJul 19

First fall frostNov 1

Why these dates work in zone 7b

Zone 7b's last spring frost averages Apr 5 and first fall frost Nov 1 — about 210 frost-free days. Corn is frost-sensitive, so the 2w after frost timing builds in a safety margin against a late cold snap — setting plants out too early risks losing them to frost.

Common questions

How long does corn take to grow in zone 7b?

Corn matures in about 70–90 days from sowing. In zone 7b that means sowing around Apr 19 and first picking around Jun 28.

Will corn survive frost in zone 7b?

No — corn is frost-sensitive. In zone 7b, wait until after the last frost (around Apr 5) to plant, and harvest before the first fall frost (around Nov 1).

For soil, spacing, pests and companion planting, see the full corn growing guide →