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When to Plant Squash (Summer) in Carteret County, NC

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

Carteret County, North Carolina is in USDA Zone 8a. The average last spring frost is March 21 and the first fall frost is November 18, giving you a growing season of approximately 242 days.

At an elevation of 469 feet, Carteret County receives approximately 42.4 inches of rainfall annually with predominantly clay loam soil. Summer highs average 95ยฐF, so Squash (Summer) may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Squash (Summer), but amend with compost to improve drainage and prevent root rot.

Carteret County, NC (Zone 8a) Long season
242 days
Last Spring Frost March 21
242 growing days
First Fall Frost November 18

Carteret County Soil Profile

Soil Type

Clay Loam

Soil pH

5.3-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (119 days to spare)
Start indoors: Feb 11 Transplant: Mar 25 🍅 Harvest: May 13 – Jul 15
Recommended (50%) ✓ Fits season (116 days to spare)
Start indoors: Feb 21 Transplant: Apr 4 🍅 Harvest: May 23 – Jul 25
Safe Start (90%) ✓ Fits season (112 days to spare)
Start indoors: Mar 11 Transplant: Apr 22 🍅 Harvest: Jun 10 – Aug 12

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
0.7″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Squash (Summer) needs ~1,169 GDD — county provides 5,142 GDD Excellent fit

Squash (Summer) Planting Timeline โ€” Carteret County, NC

Squash (Summer) Planting Calendar

Activity When Date Range
Start Indoors February 21 Feb 21 โ€“ Mar 7
Transplant Outdoors April 4 Apr 4 โ€“ Apr 18
Direct Sow March 28 Mar 28 โ€“ Apr 18
Harvest May 23 May 23 โ€“ Jul 25

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

Month-by-Month Timeline

MonthActivities
January โ€”
February Start Indoors
March Start Indoors Direct Sow
April Transplant Outdoors Direct Sow
May Harvest
June Harvest
July Harvest
August โ€”
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€“65 days

Soil pH

6 โ€“ 7.5

USDA Zone

Zone 8a

Growing Season

242 days

Growing Tips for Carteret County

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.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Level Up Your Garden

Frequently Asked Questions

When should I plant Squash (Summer) in Carteret County, NC?

Carteret County is in Zone 8a with an average last frost of March 21. Plan your Squash (Summer) planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Carteret County, NC?

Carteret County, North Carolina is in USDA Hardiness Zone 8a. The average last spring frost is March 21 and first fall frost is November 18.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Carteret County gardeners in Zone 8a 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 Carteret County, NC. Local conditions may vary. Last updated: April 2026.