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Acorn Squash Planting Guide

Acorn squash is a small winter squash with dark green, ribbed skin and mildly sweet orange flesh. It is perfect for stuffing and roasting as individual servings.

Cucurbita pepo var. turbinata ยท Vegetable ยท Cucurbitaceae family ยท 80โ€“100 days to maturity

Where Can You Grow Acorn Squash?

Acorn Squash Growing Regions

Click any state to see the Acorn Squash 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 2
Zone 3b Mar 29 May 24 May 31 Aug 23 โ€“ Sep 27
Zone 4a Mar 25 May 20 May 27 Aug 19 โ€“ Sep 23
Zone 4b Mar 20 May 15 May 22 Aug 14 โ€“ Sep 18
Zone 5a Mar 21 May 2 May 9 Aug 1 โ€“ Sep 5
Zone 5b Mar 14 Apr 25 May 2 Jul 25 โ€“ Aug 29
Zone 6a Mar 6 Apr 17 Apr 24 Jul 17 โ€“ Aug 21
Zone 6b Feb 27 Apr 10 Apr 17 Jul 10 โ€“ Aug 14
Zone 7a Feb 25 Apr 1 Apr 8 Jul 1 โ€“ Aug 5
Zone 7b Feb 18 Mar 25 Apr 1 Jun 24 โ€“ Jul 29
Zone 8a Feb 8 Mar 15 Mar 22 Jun 14 โ€“ Jul 19
Zone 8b Jan 28 Mar 4 Mar 11 Jun 3 โ€“ Jul 8
Zone 9a Jan 13 Feb 10 Feb 17 May 12 โ€“ Jun 16
Zone 9b Dec 28 Jan 25 Feb 1 Apr 26 โ€“ May 31
Zone 10a Dec 4 Jan 1 Jan 8 Apr 2 โ€“ May 7
Zone 10b Dec 4 Jan 1 Jan 8 Apr 2 โ€“ May 7
Zone 11a Dec 4 Jan 1 Jan 8 Apr 2 โ€“ May 7
Zone 11b Dec 4 Jan 1 Jan 8 Apr 2 โ€“ May 7

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Soil pH

5.5 โ€“ 7

Hardiness Zones

Zone 3a โ€“ 11b

Growing Tips

Direct sow after last frost. Harvest when the ground spot turns orange and the skin is hard. Acorn squash has a shorter storage life than butternut, lasting about 2 months.

Saving Acorn Squash Seeds

Recommended for Your Garden

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Seed Starting Trays $8-20

Start seeds indoors with reusable cell trays and humidity domes.

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Soil Test Kit $12-25

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

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Garden Plant Markers $6-12

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

Level Up Your Garden

Acorn Squash by State

Frequently Asked Questions

How long does it take to grow Acorn Squash?

Acorn Squash (Cucurbita pepo var. turbinata) takes 80 to 100 days from planting to harvest. Exact timing depends on your variety, growing conditions, and USDA zone.

What zones can Acorn Squash grow in?

Acorn Squash 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 Acorn Squash need?

Growing Acorn Squash requires Full Sun (6-8+ hours), Moderate โ€” regular watering, and soil pH of 5.5 to 7.

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