When to plant celery in zone 10b — planting calendar

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Showing USDA Zone 10B

Growing SeasonZone 10b

Last frost ~Jan 15First frost ~Dec 31Today

Start indoorsTransplant / sowHarvestFrost risk

OCTNOVDECJANFEBMARAPRMAY

Start indoors Nov 6 · Transplant Jan 1 · First harvest Apr 11 · Wrap by May 9

Last spring frostJan 15

Start seeds indoorsNov 6

Transplant outJan 1

First harvestApr 11

Last harvestMay 9

Fall succession sowSep 17

First fall frostDec 31

Why these dates work in zone 10b

Zone 10b's last spring frost averages Jan 15 and first fall frost Dec 31 — about 350 frost-free days. Celery 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 10 weeks ahead gives strong transplants ready the moment the soil warms. There's also room for a fall succession sowing around Sep 17 for a second harvest before frost.

Common questions

How long does celery take to grow in zone 10b?

Celery matures in about 100–120 days from transplanting. In zone 10b that means setting plants out around Jan 1 and first picking around Apr 11.

Will celery survive frost in zone 10b?

Yes — celery tolerates light frost. In zone 10b you can set plants out a little before the last frost (around Jan 15) and keep harvesting past the first fall frost (around Dec 31).

Can I plant a second crop of celery in zone 10b?

Yes — in zone 10b there's time for a fall sowing around Sep 17 for a second harvest before frost.

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