When to plant leek in zone 7a — planting calendar

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Showing USDA Zone 7A

Growing SeasonZone 7a

Last frost ~Apr 15First frost ~Oct 25Today

Start indoorsTransplant / sowHarvestFrost risk

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Start indoors Jan 21 · Transplant Apr 1 · First harvest Jul 10 · Wrap by Sep 4

Last spring frostApr 15

Start seeds indoorsJan 21

Transplant outApr 1

First harvestJul 10

Last harvestSep 4

First fall frostOct 25

Why these dates work in zone 7a

Zone 7a's last spring frost averages Apr 15 and first fall frost Oct 25 — about 193 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 7a?

Leek matures in about 100–120 days from transplanting. In zone 7a that means setting plants out around Apr 1 and first picking around Jul 10.

Will leek survive frost in zone 7a?

Yes — leek tolerates light frost. In zone 7a you can set plants out a little before the last frost (around Apr 15) and keep harvesting past the first fall frost (around Oct 25).

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