When to plant leek in zone 7b — planting calendar

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Showing USDA Zone 7B

Growing SeasonZone 7b

Last frost ~Apr 5First frost ~Nov 1Today

Start indoorsTransplant / sowHarvestFrost risk

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Start indoors Jan 11 · Transplant Mar 22 · First harvest Jun 30 · Wrap by Aug 25

Last spring frostApr 5

Start seeds indoorsJan 11

Transplant outMar 22

First harvestJun 30

Last harvestAug 25

First fall frostNov 1

Why these dates work in zone 7b

Zone 7b's last spring frost averages Apr 5 and first fall frost Nov 1 — about 210 frost-free days. Leek 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 12 weeks ahead gives strong transplants ready the moment the soil warms.

Common questions

How long does leek take to grow in zone 7b?

Leek matures in about 100–120 days from transplanting. In zone 7b that means setting plants out around Mar 22 and first picking around Jun 30.

Will leek survive frost in zone 7b?

Yes — leek tolerates light frost. In zone 7b you can set plants out a little before the last frost (around Apr 5) and keep harvesting past the first fall frost (around Nov 1).

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