When to plant lemon balm in zone 6a — planting calendar

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Showing USDA Zone 6A

Growing SeasonZone 6a

Last frost ~Apr 30First frost ~Oct 10Today

Start indoorsTransplant / sowHarvestFrost risk

MARAPRMAYJUNJULAUGSEPOCT

Start indoors Mar 19 · Transplant Apr 30 · First harvest Jun 29 · Wrap by Oct 10

Last spring frostApr 30

Start seeds indoorsMar 19

Transplant outApr 30

First harvestJun 29

Last harvestOct 10

First fall frostOct 10

Why these dates work in zone 6a

Zone 6a's last spring frost averages Apr 30 and first fall frost Oct 10 — about 163 frost-free days. Lemon Balm 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 6 weeks ahead gives strong transplants ready the moment the soil warms.

Common questions

How long does lemon balm take to grow in zone 6a?

Lemon Balm matures in about 60–90 days from transplanting. In zone 6a that means setting plants out around Apr 30 and first picking around Jun 29.

Will lemon balm survive frost in zone 6a?

Yes — lemon balm tolerates light frost. In zone 6a you can set plants out a little before the last frost (around Apr 30) and keep harvesting past the first fall frost (around Oct 10).

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