When to plant bok choy 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

MARAPRMAYJUN

Start indoors Apr 2 · Transplant Apr 9 · First harvest May 24 · Wrap by Jun 14

Last spring frostApr 30

Start seeds indoorsApr 2

Transplant outApr 9

First harvestMay 24

Last harvestJun 14

Fall succession sowAug 15

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. Bok Choy 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 4 weeks ahead gives strong transplants ready the moment the soil warms. There's also room for a fall succession sowing around Aug 15 for a second harvest before frost.

Common questions

How long does bok choy take to grow in zone 6a?

Bok Choy matures in about 45–60 days from transplanting. In zone 6a that means setting plants out around Apr 9 and first picking around May 24.

Will bok choy survive frost in zone 6a?

Yes — bok choy 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).

Can I plant a second crop of bok choy in zone 6a?

Yes — in zone 6a there's time for a fall sowing around Aug 15 for a second harvest before frost.

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