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

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

Tishomingo County, Mississippi is in USDA Zone 7b. The average last spring frost is March 30 and the first fall frost is October 29, giving you a growing season of approximately 213 days.

At an elevation of 101 feet, Tishomingo County receives approximately 56.9 inches of rainfall annually with predominantly clay loam soil. Summer highs average 90ยฐF, providing good warmth for Squash (Summer) during the growing season. 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.

Tishomingo County, MS (Zone 7b) Long season
213 days
Last Spring Frost March 30
213 growing days
First Fall Frost October 29

Tishomingo County Soil Profile

Soil Type

Clay Loam

Soil pH

5.2-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (90 days to spare)
Start indoors: Feb 22 Transplant: Apr 5 🍅 Harvest: May 24 – Jul 26
Recommended (50%) ✓ Fits season (87 days to spare)
Start indoors: Mar 2 Transplant: Apr 13 🍅 Harvest: Jun 1 – Aug 3
Safe Start (90%) ✓ Fits season (93 days to spare)
Start indoors: Mar 19 Transplant: Apr 30 🍅 Harvest: Jun 18 – Aug 20

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
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Squash (Summer) needs ~962 GDD — county provides 3,727 GDD Excellent fit

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

Squash (Summer) Planting Calendar

Activity When Date Range
Start Indoors March 2 Mar 2 โ€“ Mar 16
Transplant Outdoors April 13 Apr 13 โ€“ Apr 27
Direct Sow April 6 Apr 6 โ€“ Apr 27
Harvest June 1 Jun 1 โ€“ Aug 3

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

Month-by-Month Timeline

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

Soil pH

6 โ€“ 7.5

USDA Zone

Zone 7b

Growing Season

213 days

Growing Tips for Tishomingo 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 Tishomingo County, MS?

Tishomingo County is in Zone 7b with an average last frost of March 30. Plan your Squash (Summer) planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Tishomingo County, MS?

Tishomingo County, Mississippi is in USDA Hardiness Zone 7b. The average last spring frost is March 30 and first fall frost is October 29.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Tishomingo County gardeners in Zone 7b 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 Tishomingo County, MS. Local conditions may vary. Last updated: April 2026.