When to plant bush beans in zone 9b — planting calendar

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Showing USDA Zone 9B

Growing SeasonZone 9b

Last frost ~Feb 15First frost ~Dec 10Today

Start indoorsTransplant / sowHarvestFrost risk

FEBMARAPRMAY

Sow Mar 1 · First harvest Apr 20 · Wrap by May 11

Last spring frostFeb 15

Direct sowMar 1

First harvestApr 20

Last harvestMay 11

First fall frostDec 10

Why these dates work in zone 9b

Zone 9b's last spring frost averages Feb 15 and first fall frost Dec 10 — about 298 frost-free days. Bush Beans 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 bush beans take to grow in zone 9b?

Bush Beans matures in about 50–65 days from sowing. In zone 9b that means sowing around Mar 1 and first picking around Apr 20.

Will bush beans survive frost in zone 9b?

No — bush beans is frost-sensitive. In zone 9b, wait until after the last frost (around Feb 15) to plant, and harvest before the first fall frost (around Dec 10).

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