When to plant rhubarb 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

FEBMARAPRMAYJUNJULAUGSEPOCTNOVDECJANFEBMARAPRMAYJUNJULAUGSEP

Transplant Mar 1 · First harvest Aug 31 · Wrap by Nov 15

Last spring frostMar 15

Transplant outMar 1

First harvestAug 31

Last harvestNov 15

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. Rhubarb 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 rhubarb take to grow in zone 8b?

Rhubarb matures in about 548–730 days from transplanting. In zone 8b that means setting plants out around Mar 1 and first picking around Aug 31.

Will rhubarb survive frost in zone 8b?

Yes — rhubarb 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).

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