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Squash (Summer) Planting Guide

Summer squash includes zucchini, yellow crookneck, and pattypan varieties that are harvested young and tender. They are prolific producers in warm weather.

Cucurbita pepo ยท Vegetable ยท Cucurbitaceae family ยท 45โ€“65 days to maturity

Where Can You Grow Squash (Summer)?

Squash (Summer) Growing Regions

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

Planting Dates by Zone

Zone Start Indoors Direct Sow Transplant Harvest
Zone 3a Apr 3 May 29 Jun 5 Jul 24 โ€“ Sep 25
Zone 3b Mar 29 May 24 May 31 Jul 19 โ€“ Sep 20
Zone 4a Mar 25 May 20 May 27 Jul 15 โ€“ Sep 16
Zone 4b Mar 20 May 15 May 22 Jul 10 โ€“ Sep 11
Zone 5a Mar 21 May 2 May 9 Jun 27 โ€“ Aug 29
Zone 5b Mar 14 Apr 25 May 2 Jun 20 โ€“ Aug 22
Zone 6a Mar 6 Apr 17 Apr 24 Jun 12 โ€“ Aug 14
Zone 6b Feb 27 Apr 10 Apr 17 Jun 5 โ€“ Aug 7
Zone 7a Feb 25 Apr 1 Apr 8 May 27 โ€“ Jul 29
Zone 7b Feb 18 Mar 25 Apr 1 May 20 โ€“ Jul 22
Zone 8a Feb 8 Mar 15 Mar 22 May 10 โ€“ Jul 12
Zone 8b Jan 28 Mar 4 Mar 11 Apr 29 โ€“ Jul 1
Zone 9a Jan 13 Feb 10 Feb 17 Apr 7 โ€“ Jun 9
Zone 9b Dec 28 Jan 25 Feb 1 Mar 22 โ€“ May 24
Zone 10a Dec 4 Jan 1 Jan 8 Feb 26 โ€“ Apr 30
Zone 10b Dec 4 Jan 1 Jan 8 Feb 26 โ€“ Apr 30
Zone 11a Dec 4 Jan 1 Jan 8 Feb 26 โ€“ Apr 30
Zone 11b Dec 4 Jan 1 Jan 8 Feb 26 โ€“ Apr 30

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Soil pH

6 โ€“ 7.5

Hardiness Zones

Zone 3a โ€“ 11b

Growing Tips

Direct sow after last frost on mounds. Harvest frequently when fruits are 6-8 inches for best texture. Check plants daily as they grow rapidly in summer heat.

Saving Squash (Summer) Seeds

Recommended for Your Garden

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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.

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Garden Plant Markers $6-12

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

Level Up Your Garden

Squash (Summer) by State

Frequently Asked Questions

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

Squash (Summer) (Cucurbita pepo) takes 45 to 65 days from planting to harvest. Exact timing depends on your variety, growing conditions, and USDA zone.

What zones can Squash (Summer) grow in?

Squash (Summer) 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 (Summer) need?

Growing Squash (Summer) requires Full Sun (6-8+ hours), Moderate โ€” regular watering, and soil pH of 6 to 7.5.

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