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When to Plant Squash (Summer) in Madison County, MS

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

Madison County, Mississippi is in USDA Zone 8a. The average last spring frost is March 13 and the first fall frost is November 11, giving you a growing season of approximately 243 days.

At an elevation of 248 feet, Madison County receives approximately 56.7 inches of rainfall annually with predominantly clay loam soil. Summer highs average 97ยฐF, 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. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Squash (Summer) root diseases.

Madison County, MS (Zone 8a) Long season
243 days
Last Spring Frost March 13
243 growing days
First Fall Frost November 11

Madison County Soil Profile

Soil Type

Clay Loam

Soil pH

5.7-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (114 days to spare)
Start indoors: Feb 6 Transplant: Mar 20 🍅 Harvest: May 8 – Jul 10
Recommended (50%) ✓ Fits season (117 days to spare)
Start indoors: Feb 13 Transplant: Mar 27 🍅 Harvest: May 15 – Jul 17
Safe Start (90%) ✓ Fits season (107 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
1.0″/week
You supply
0.0″/week
Watering frequency Only during dry spells
Season total 52 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

Squash (Summer) needs ~1,251 GDD — county provides 5,528 GDD Excellent fit

Squash (Summer) Planting Timeline โ€” Madison County, MS

Squash (Summer) Planting Calendar

Activity When Date Range
Start Indoors February 13 Feb 13 โ€“ Feb 27
Transplant Outdoors March 27 Mar 27 โ€“ Apr 10
Direct Sow March 20 Mar 20 โ€“ Apr 10
Harvest May 15 May 15 โ€“ Jul 17

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

Month-by-Month Timeline

MonthActivities
January โ€”
February Start Indoors
March Transplant Outdoors 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

243 days

Growing Tips for Madison 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 Madison County, MS?

Madison County is in Zone 8a with an average last frost of March 13. Plan your Squash (Summer) planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Madison County, MS?

Madison County, Mississippi is in USDA Hardiness Zone 8a. The average last spring frost is March 13 and first fall frost is November 11.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Madison 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 Madison County, MS. Local conditions may vary. Last updated: April 2026.