When to Plant Squash (Summer) in West Virginia
Zucchini and yellow squash are the garden's most generous producers. You'll be sharing with neighbors by midsummer.
The Short Answer
West Virginia Frost Dates
Your planting dates depend on which part of West Virginia you're in. Here are the frost date ranges by region:
| Region | Zones | Last Frost (Spring) | First Frost (Fall) |
|---|---|---|---|
| Eastern Panhandle | 6a, 6b | Apr 20 - May 5 | Oct 5 - Oct 20 |
| Central Mountains | 5a, 5b, 6a | May 1 - May 20 | Sep 20 - Oct 10 |
| Southern Valleys | 6b, 7a | Apr 10 - Apr 25 | Oct 15 - Nov 1 |
Squash (Summer) Planting Schedule for West Virginia
Eastern Panhandle (Zones 6a, 6b)
Average last frost: Apr 20 - May 5 · Average first frost: Oct 5 - Oct 20
Central Mountains (Zones 5a, 5b, 6a)
Average last frost: May 1 - May 20 · Average first frost: Sep 20 - Oct 10
Southern Valleys (Zones 6b, 7a)
Average last frost: Apr 10 - Apr 25 · Average first frost: Oct 15 - Nov 1
Growing Squash (Summer) in West Virginia
Squash (Summer) in West Virginia'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 West Virginia
Shale and sandstone soils. Acidic throughout. Thin mountain soils. Valleys have better soil depth. Raised beds often recommended. Make sure soil has warmed to at least 60°F before planting squash (summer) outside.
West Virginia Climate & Growing Season
Mountain climate with significant elevation variation. Cooler summers at altitude. Good rainfall. Microclimates in valleys. Squash (Summer) cannot tolerate any frost, so wait until all frost danger has passed before transplanting outside. Watch local forecasts carefully in spring.
Growing season length varies across West Virginia: Eastern Panhandle (6a, 6b) has a last frost around Apr 20 - May 5, while Southern Valleys (6b, 7a) sees frost end around Apr 10 - Apr 25. This difference matters for squash (summer) — transplant timing shifts by several weeks across the state.
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:
Keep squash (summer) away from:
The Bottom Line
Last reviewed: March 29, 2026