When to plant butternut squash

Tender · frost kills it

Butternut Squashis keyed to your local frost dates. The offsets below hold anywhere — but the calendar dates they land on don’t. Enter your ZIP for dates tuned to your city’s nearest NOAA station.

Butternut Squash planting timeline

Direct sow

1–3 wks after

Harvest

90–110 days later

-1 wksLAST SPRING FROST+18 wks

Tender: wait until the danger of frost has passed before planting out.

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Butternut Squash planting FAQ

Can I direct sow butternut squash?

Yes — you can sow butternut squash directly outdoors 1–3 weeks after the last spring frost.

How long does butternut squash take to grow?

Butternut Squash takes about 90–110 days from sowing to harvest, depending on the variety and conditions.

Is butternut squash frost-hardy?

Tender: wait until the danger of frost has passed before planting out.

Planting reminders

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An email when it’s time to start seeds, transplant, and sow — timed to your frost dates. Double opt-in, one-click unsubscribe, no spam.

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Planting windows are offsets from your local 1991–2020 NOAA frost normals. How we compute this.