When to plant basil in zone 7a — planting calendar

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Showing USDA Zone 7A

Growing SeasonZone 7a

Last frost ~Apr 15First frost ~Oct 25Today

Start indoorsTransplant / sowHarvestFrost risk

MARAPRMAYJUNJULAUG

Start indoors Mar 18 · Sow Apr 29 · First harvest May 24 · Wrap by Aug 16

Last spring frostApr 15

Start seeds indoorsMar 18

Direct sowApr 29

First harvestMay 24

Last harvestAug 16

First fall frostOct 25

Why these dates work in zone 7a

Zone 7a's last spring frost averages Apr 15 and first fall frost Oct 25 — about 193 frost-free days. Basil 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. Starting seeds indoors 4 weeks ahead gives strong transplants ready the moment the soil warms.

Common questions

How long does basil take to grow in zone 7a?

Basil matures in about 25–35 days from sowing. In zone 7a that means sowing around Apr 29 and first picking around May 24.

Will basil survive frost in zone 7a?

No — basil is frost-sensitive. In zone 7a, wait until after the last frost (around Apr 15) to plant, and harvest before the first fall frost (around Oct 25).

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