When to plant asparagus 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

JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECJANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDECJANFEB

Transplant Feb 1 · First harvest Feb 1 · Wrap by Dec 10

Last spring frostFeb 15

Transplant outFeb 1

First harvestFeb 1

Last harvestDec 10

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. Asparagus tolerates light frost, so you can set plants out ahead of the last-frost date and keep harvesting into the cooler fall.

Common questions

How long does asparagus take to grow in zone 9b?

Asparagus matures in about 730–1095 days from transplanting. In zone 9b that means setting plants out around Feb 1 and first picking around Feb 1.

Will asparagus survive frost in zone 9b?

Yes — asparagus tolerates light frost. In zone 9b you can set plants out a little before the last frost (around Feb 15) and keep harvesting past the first fall frost (around Dec 10).

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