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Squash (Winter) Planting Guide

Winter squash includes butternut, acorn, delicata, and hubbard varieties grown to full maturity with hard rinds for storage. They develop sweet, dense flesh.

Cucurbita moschata ยท Vegetable ยท Cucurbitaceae family ยท 80โ€“120 days to maturity

Where Can You Grow Squash (Winter)?

Squash (Winter) Growing Regions

Click any state to see the Squash (Winter) planting schedule for that location.

Planting Dates by Zone

Zone Start Indoors Direct Sow Transplant Harvest
Zone 3a Apr 3 May 29 Jun 5 Aug 28 โ€“ Oct 9
Zone 3b Mar 29 May 24 May 31 Aug 23 โ€“ Oct 4
Zone 4a Mar 25 May 20 May 27 Aug 19 โ€“ Oct 14
Zone 4b Mar 20 May 15 May 22 Aug 14 โ€“ Oct 9
Zone 5a Mar 21 May 2 May 9 Aug 1 โ€“ Sep 26
Zone 5b Mar 14 Apr 25 May 2 Jul 25 โ€“ Sep 19
Zone 6a Mar 6 Apr 17 Apr 24 Jul 17 โ€“ Sep 11
Zone 6b Feb 27 Apr 10 Apr 17 Jul 10 โ€“ Sep 4
Zone 7a Feb 25 Apr 1 Apr 8 Jul 1 โ€“ Aug 26
Zone 7b Feb 18 Mar 25 Apr 1 Jun 24 โ€“ Aug 19
Zone 8a Feb 8 Mar 15 Mar 22 Jun 14 โ€“ Aug 9
Zone 8b Jan 28 Mar 4 Mar 11 Jun 3 โ€“ Jul 29
Zone 9a Jan 13 Feb 10 Feb 17 May 12 โ€“ Jul 7
Zone 9b Dec 28 Jan 25 Feb 1 Apr 26 โ€“ Jun 21
Zone 10a Dec 4 Jan 1 Jan 8 Apr 2 โ€“ May 28
Zone 10b Dec 4 Jan 1 Jan 8 Apr 2 โ€“ May 28
Zone 11a Dec 4 Jan 1 Jan 8 Apr 2 โ€“ May 28
Zone 11b Dec 4 Jan 1 Jan 8 Apr 2 โ€“ May 28

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Soil pH

6 โ€“ 7

Hardiness Zones

Zone 3a โ€“ 11b

Growing Tips

Direct sow after last frost on rich mounds. Allow ample space for sprawling vines. Cure harvested fruits in the sun for 10 days before storing in a cool, dry place.

Saving Squash (Winter) Seeds

Recommended for Your Garden

๐ŸŒฑ
Seed Starting Trays $8-20

Start seeds indoors with reusable cell trays and humidity domes.

๐Ÿงช
Soil Test Kit $12-25

Test your soil pH, nitrogen, phosphorus, and potassium levels before planting.

๐Ÿท๏ธ
Garden Plant Markers $6-12

Keep your garden organized with durable, weather-resistant plant labels.

Level Up Your Garden

Squash (Winter) by State

Frequently Asked Questions

How long does it take to grow Squash (Winter)?

Squash (Winter) (Cucurbita moschata) takes 80 to 120 days from planting to harvest. Exact timing depends on your variety, growing conditions, and USDA zone.

What zones can Squash (Winter) grow in?

Squash (Winter) can be grown in USDA zones 3a through 11b. Use the planting calendar above to find the exact dates for your zone.

How much sun does Squash (Winter) need?

Growing Squash (Winter) requires Full Sun (6-8+ hours), Moderate โ€” regular watering, and soil pH of 6 to 7.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals, University Cooperative Extension planting guides. Last updated: April 2026.