When to plant shallot in zone 3b — planting calendar

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Showing USDA Zone 3B

Growing SeasonZone 3b

Last frost ~May 25First frost ~Sep 15Today

Start indoorsTransplant / sowHarvestFrost risk

APRMAYJUNJULAUG

Sow May 4 · First harvest Jul 3 · Wrap by Jul 31

Last spring frostMay 25

Direct sowMay 4

First harvestJul 3

Last harvestJul 31

First fall frostSep 15

Why these dates work in zone 3b

Zone 3b's last spring frost averages May 25 and first fall frost Sep 15 — about 113 frost-free days. Shallot tolerates light frost, so you can sow ahead of the last-frost date and keep harvesting into the cooler fall.

Common questions

How long does shallot take to grow in zone 3b?

Shallot matures in about 60–80 days from sowing. In zone 3b that means sowing around May 4 and first picking around Jul 3.

Will shallot survive frost in zone 3b?

Yes — shallot tolerates light frost. In zone 3b you can sow a little before the last frost (around May 25) and keep harvesting past the first fall frost (around Sep 15).

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