Warm-Season Vegetable

When to Plant Squash (Summer) in Virginia

Zucchini and yellow squash are the garden's most generous producers. You'll be sharing with neighbors by midsummer.

The Short Answer

Virginia's warm, humid summers provide excellent squash-growing conditions throughout the state. The long Piedmont season from April through October supports multiple plantings of summer squash, and even the mountain regions have enough frost-free days for winter squash varieties. Squash has been grown in Virginia since long before European settlement — indigenous peoples in the region cultivated the Three Sisters (corn, beans, squash) for centuries.

Virginia Frost Dates

Your planting dates depend on which part of Virginia you're in. Here are the frost date ranges by region:

Region Zones Last Frost (Spring) First Frost (Fall)
Mountain Virginia 5b, 6a May 1 - May 15 Sep 25 - Oct 10
Piedmont/Central Virginia 7a, 7b Apr 5 - Apr 20 Oct 15 - Nov 1
Tidewater/Coastal 7b, 8a Mar 20 - Apr 5 Oct 25 - Nov 10

Squash (Summer) Planting Schedule for Virginia

Mountain Virginia (Zones 5b, 6a)

Average last frost: May 1 - May 15 · Average first frost: Sep 25 - Oct 10

Start Seeds Indoors
3 wks before frost
Transplant Outside
2 wks after frost
Direct Sow
2 wks after frost

Piedmont/Central Virginia (Zones 7a, 7b)

Average last frost: Apr 5 - Apr 20 · Average first frost: Oct 15 - Nov 1

Start Seeds Indoors
3 wks before frost
Transplant Outside
2 wks after frost
Direct Sow
2 wks after frost

Tidewater/Coastal (Zones 7b, 8a)

Average last frost: Mar 20 - Apr 5 · Average first frost: Oct 25 - Nov 10

Start Seeds Indoors
3 wks before frost
Transplant Outside
2 wks after frost
Direct Sow
2 wks after frost

Growing Squash (Summer) in Virginia

State-Specific Growing Tips

Mountain Virginia: direct sow from mid-May. Piedmont and Northern Virginia: direct sow from early to mid-May. Tidewater and coastal: direct sow from late April. For a fall harvest, plant a second round of summer squash in late July — Virginia's mild falls allow production into October in the Piedmont and coastal regions. Amend Virginia's clay Piedmont soil with compost and plant in raised hills for drainage. In the Tidewater's sandier soils, focus on moisture retention. Virginia Tech Extension provides regional planting guides that are more specific than most state programs.

Recommended Varieties for Virginia

Yellow Crookneck, Straightneck, and Black Beauty zucchini are reliable across all regions. Tromboncino (climbing zucchini) is increasingly popular in Virginia — it's resistant to vine borers and produces on overhead trellises. For winter squash, Butternut Waltham, Acorn, and Delicata are all proven in Virginia. The mountain region should choose shorter-season varieties.

Common Challenges in Virginia

Squash vine borer is aggressive in Virginia — two generations are possible in the southern Piedmont and Tidewater regions. Tromboncino and Butternut squash show natural resistance. Cucumber beetles emerge early and spread bacterial wilt. Powdery mildew is nearly guaranteed by August — choose resistant varieties and accept some cosmetic damage on aging plants. In the humid Tidewater, downy mildew can also appear.

Growing Tips

Harvest when fruits are 6-8 inches long for best flavor. Larger squash become seedy and tough.

Companion Planting

Plant squash (summer) alongside these companions for better growth:

Corn Beans Nasturtiums

Keep squash (summer) away from:

Potatoes

The Bottom Line

Squash (Summer) can be grown successfully in Virginia with proper attention to regional frost dates and local growing conditions. Timing varies across the state — Mountain Virginia gardeners work with a last frost around May 1 - May 15, while Tidewater/Coastal sees frost end around Mar 20 - Apr 5. Choose varieties suited to your region, amend your soil based on its specific needs, and monitor for the pests and diseases most common in your area. For exact dates based on your zip code, use our free planting date finder.

Related Guides

Squash (Summer) Growing Guide National planting guide with all states Virginia Planting Calendar All plants for Virginia Squash (Summer) in Alabama Alabama planting dates Squash (Summer) in Alaska Alaska planting dates Squash (Summer) in Arizona Arizona planting dates Squash (Summer) in Arkansas Arkansas planting dates
Note: All dates are based on NOAA 30-year Climate Normals and represent historical averages, not predictions for any specific year. Always check your local weather forecast before planting frost-sensitive crops. Learn about our data sources.

Last reviewed: March 29, 2026

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