When to plant radish 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

FEBMARAPR

Sow Mar 8 · First harvest Mar 30 · Wrap by Apr 13

Last spring frostApr 5

Direct sowMar 8

First harvestMar 30

Last harvestApr 13

Fall succession sowSep 20

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. Radish tolerates light frost, so you can sow ahead of the last-frost date and keep harvesting into the cooler fall. There's also room for a fall succession sowing around Sep 20 for a second harvest before frost.

Common questions

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

Radish matures in about 22–30 days from sowing. In zone 7b that means sowing around Mar 8 and first picking around Mar 30.

Will radish survive frost in zone 7b?

Yes — radish tolerates light frost. In zone 7b you can sow a little before the last frost (around Apr 5) and keep harvesting past the first fall frost (around Nov 1).

Can I plant a second crop of radish in zone 7b?

Yes — in zone 7b there's time for a fall sowing around Sep 20 for a second harvest before frost.

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