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When to Plant Zucchini in Wyoming County, PA

Zucchini is an incredibly prolific summer squash that can produce an abundance of fruit from just a few plants. It is versatile in the kitchen from grilling to baking.

Wyoming County, Pennsylvania is in USDA Zone 5a. The average last spring frost is May 1 and the first fall frost is October 16, giving you a growing season of approximately 168 days.

At an elevation of 1,015 feet, Wyoming County receives approximately 38.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87ยฐF, providing good warmth for Zucchini during the growing season.

Wyoming County, PA (Zone 5a) Moderate season
168 days
Last Spring Frost May 1
168 growing days
First Fall Frost October 16

Wyoming County Soil Profile

Soil Type

Silt Loam

Soil pH

5-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (45 days to spare)
Start indoors: Mar 23 Transplant: May 11 🍅 Harvest: Jun 29 – Aug 24
Recommended (50%) ✓ Fits season (49 days to spare)
Start indoors: Mar 27 Transplant: May 15 🍅 Harvest: Jul 3 – Aug 28
Safe Start (90%) ✓ Fits season (49 days to spare)
Start indoors: Apr 12 Transplant: May 31 🍅 Harvest: Jul 19 – Sep 13

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.0″/week
You supply
0.0″/week
Watering frequency Only during dry spells
Season total 52 gal / 100 sq ft
Zucchini needs ~801 GDD — county provides 2,562 GDD Excellent fit

Zucchini Planting Timeline โ€” Wyoming County, PA

Zucchini Planting Calendar

Activity When Date Range
Start Indoors March 27 Mar 27 โ€“ Apr 10
Transplant Outdoors May 15 May 15 โ€“ May 29
Direct Sow May 8 May 8 โ€“ May 29
Harvest July 3 Jul 3 โ€“ Aug 28

Plant 1" deep ยท 30" apart ยท Rows 42" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March Start Indoors
April Start Indoors
May Transplant Outdoors Direct Sow
June โ€”
July Harvest
August Harvest
September โ€”
October โ€”
November โ€”
December โ€”

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

45โ€“60 days

Soil pH

6 โ€“ 7.5

USDA Zone

Zone 5a

Growing Season

168 days

Growing Tips for Wyoming County

Direct sow after last frost. Harvest when fruits are 6-8 inches long for best flavor and texture. Check plants daily in summer as fruits can double in size overnight.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Level Up Your Garden

Frequently Asked Questions

When should I plant Zucchini in Wyoming County, PA?

Wyoming County is in Zone 5a with an average last frost of May 1. Plan your Zucchini planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Wyoming County, PA?

Wyoming County, Pennsylvania is in USDA Hardiness Zone 5a. The average last spring frost is May 1 and first fall frost is October 16.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Wyoming County gardeners in Zone 5a organize planting dates, track what's growing, and never miss a planting window.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Wyoming County, PA. Local conditions may vary. Last updated: April 2026.