Warm-Season Vegetable

When to Plant Squash (Summer) in Rhode Island

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

The Short Answer

In Rhode Island, squash (summer) planting dates vary by region. Since squash (summer) are frost-sensitive, start seeds indoors 3 weeks before your last frost, then transplant outside 2 weeks after frost danger has passed. Rocky, acidic New England soils. Sandy near coast. Glacial deposits throughout. Amendment needed for most vegetable...

Rhode Island Frost Dates

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

Region	Zones	Last Frost (Spring)	First Frost (Fall)
Rhode Island	6a, 6b, 7a	Apr 15 - May 5	Oct 5 - Oct 25

Squash (Summer) Planting Schedule for Rhode Island

Rhode Island (Zones 6a, 6b, 7a)

Average last frost: Apr 15 - May 5 · Average first frost: Oct 5 - Oct 25

Start Seeds Indoors

3 wks before frost

Transplant Outside

2 wks after frost

Direct Sow

2 wks after frost

Growing Squash (Summer) in Rhode Island

Squash (Summer) in Rhode Island's Climate

Your warm summers grow spectacular squash. Direct sow or transplant from mid-May. Squash vine borer emerges in late June — monitor stem bases for sawdust-like frass. Many Midwest and mid-Atlantic gardeners plant a second round in early July to replace borer-damaged early plants with clean late-season production.

Soil Considerations for Rhode Island

Rocky, acidic New England soils. Sandy near coast. Glacial deposits throughout. Amendment needed for most vegetable gardening. Make sure soil has warmed to at least 60°F before planting squash (summer) outside.

Rhode Island Climate & Growing Season

Maritime climate moderates temperatures. Four seasons. Moderate growing season. Ocean influence reduces frost risk near coast. Squash (Summer) cannot tolerate any frost, so wait until all frost danger has passed before transplanting outside. Watch local forecasts carefully in spring.

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 across Rhode Island, but your exact planting dates depend on which region you're in. Rhode Island gardeners should plan around a Apr 15 - May 5 last frost, while those in Rhode Island can typically plant later. For exact dates based on your zip code, use our free planting date finder.

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