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When to Plant Squash (Winter) in Smith County, MS

Winter squash includes butternut, acorn, delicata, and hubbard varieties grown to full maturity with hard rinds for storage. They develop sweet, dense flesh.

Smith County, Mississippi is in USDA Zone 8a. The average last spring frost is March 13 and the first fall frost is November 13, giving you a growing season of approximately 245 days.

At an elevation of 492 feet, Smith County receives approximately 58.4 inches of rainfall annually with predominantly clay loam soil. Summer highs average 96ยฐF, so Squash (Winter) may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Squash (Winter), but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Squash (Winter) root diseases.

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

Smith County Soil Profile

Soil Type

Clay Loam

Soil pH

5.7-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (90 days to spare)
Start indoors: Feb 6 Transplant: Mar 20 🍅 Harvest: Jun 12 – Aug 7
Recommended (50%) ✓ Fits season (91 days to spare)
Start indoors: Feb 13 Transplant: Mar 27 🍅 Harvest: Jun 19 – Aug 14
Safe Start (90%) ✓ Fits season (82 days to spare)
Start indoors: Mar 10 Transplant: Apr 21 🍅 Harvest: Jul 14 – Sep 8

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
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Squash (Winter) needs ~2,200 GDD — county provides 5,390 GDD Excellent fit

Squash (Winter) Planting Timeline โ€” Smith County, MS

Squash (Winter) 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 June 19 Jun 19 โ€“ Aug 14

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 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

80โ€“120 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 8a

Growing Season

245 days

Growing Tips for Smith County

Direct sow after last frost on rich mounds. Allow ample space for sprawling vines. Cure harvested fruits in the sun for 10 days before storing in a cool, dry place.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Level Up Your Garden

Frequently Asked Questions

When should I plant Squash (Winter) in Smith County, MS?

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

What planting zone is Smith County, MS?

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

๐ŸŒฑ

Plan Your Garden with Confidence

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