When to plant scallion in zone 5a — planting calendar

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Showing USDA Zone 5A

Growing SeasonZone 5a

Last frost ~May 10First frost ~Oct 1Today

Start indoorsTransplant / sowHarvestFrost risk

APRMAYJUNJULAUG

Sow Apr 19 · First harvest Jun 18 · Wrap by Jul 30

Last spring frostMay 10

Direct sowApr 19

First harvestJun 18

Last harvestJul 30

Fall succession sowAug 6

First fall frostOct 1

Why these dates work in zone 5a

Zone 5a's last spring frost averages May 10 and first fall frost Oct 1 — about 144 frost-free days. Scallion tolerates light frost, so you can sow ahead of the last-frost date and keep harvesting into the cooler fall. There's also room for a fall succession sowing around Aug 6 for a second harvest before frost.

Common questions

How long does scallion take to grow in zone 5a?

Scallion matures in about 60–70 days from sowing. In zone 5a that means sowing around Apr 19 and first picking around Jun 18.

Will scallion survive frost in zone 5a?

Yes — scallion tolerates light frost. In zone 5a you can sow a little before the last frost (around May 10) and keep harvesting past the first fall frost (around Oct 1).

Can I plant a second crop of scallion in zone 5a?

Yes — in zone 5a there's time for a fall sowing around Aug 6 for a second harvest before frost.

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