When to plant brussels sprouts in zone 8b — planting calendar

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Showing USDA Zone 8B

Growing SeasonZone 8b

Last frost ~Mar 15First frost ~Nov 15Today

Start indoorsTransplant / sowHarvestFrost risk

JANFEBMARAPRMAYJUNJUL

Start indoors Feb 1 · Transplant Feb 22 · First harvest May 23 · Wrap by Jul 4

Last spring frostMar 15

Start seeds indoorsFeb 1

Transplant outFeb 22

First harvestMay 23

Last harvestJul 4

Fall succession sowAug 2

First fall frostNov 15

Why these dates work in zone 8b

Zone 8b's last spring frost averages Mar 15 and first fall frost Nov 15 — about 245 frost-free days. Brussels Sprouts tolerates light frost, so you can set plants out ahead of the last-frost date and keep harvesting into the cooler fall. Starting seeds indoors 6 weeks ahead gives strong transplants ready the moment the soil warms. There's also room for a fall succession sowing around Aug 2 for a second harvest before frost.

Common questions

How long does brussels sprouts take to grow in zone 8b?

Brussels Sprouts matures in about 90–110 days from transplanting. In zone 8b that means setting plants out around Feb 22 and first picking around May 23.

Will brussels sprouts survive frost in zone 8b?

Yes — brussels sprouts tolerates light frost. In zone 8b you can set plants out a little before the last frost (around Mar 15) and keep harvesting past the first fall frost (around Nov 15).

Can I plant a second crop of brussels sprouts in zone 8b?

Yes — in zone 8b there's time for a fall sowing around Aug 2 for a second harvest before frost.

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