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When to Plant Spaghetti Squash in Walthall County, MS

Walthall County, Mississippi Zone 8b May

Walthall County, Mississippi gardeners: here's your May plan

Welcome to May in Zone 8b. These are the moves that will have the biggest impact on your growing season.

Avg. last frost March 15
Avg. first frost November 16
Soil temp (4") 73°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
Get ahead of June
  • First harvests: spaghetti squash

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Spaghetti squash is a winter squash whose cooked flesh separates into pasta-like strands. It is a popular low-carb alternative to pasta.

Walthall County, Mississippi is in USDA Zone 8b. The average last spring frost is March 15 and the first fall frost is November 16, giving you a growing season of approximately 246 days.

At an elevation of 207 feet, Walthall County receives approximately 50.2 inches of rainfall annually with predominantly clay loam soil. Summer highs average 90°F, providing good warmth for Spaghetti Squash during the growing season. Clay soil retains moisture well for Spaghetti Squash, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Spaghetti Squash root diseases.

Walthall County, MS (Zone 8b) Long season
246 days
Last Spring Frost March 15
246 growing days
First Fall Frost November 16

Walthall County Soil Profile

Soil Type

Clay Loam

Soil pH

5.5-6.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (119 days to spare)
Start indoors: Feb 4 Transplant: Mar 18 🍅 Harvest: Jun 17 – Jul 15
Recommended (50%) ✓ Fits season (113 days to spare)
Start indoors: Feb 15 Transplant: Mar 29 🍅 Harvest: Jun 28 – Jul 26
Safe Start (90%) ✓ Fits season (106 days to spare)
Start indoors: Mar 9 Transplant: Apr 20 🍅 Harvest: Jul 20 – Aug 17

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.

Soil Compatibility in Walthall County

How your county's soil matches Spaghetti Squash's growing requirements.

Soil pH

Your soil pH (5.5–6.6) overlaps with Spaghetti Squash's range (6.0–7.0), though not a perfect match.

Soil Texture

The clay loam soil in Walthall County is excellent for Spaghetti Squash — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Spaghetti Squash.

Organic Matter

Organic matter is moderate (2.3%). Annual compost additions will help Spaghetti Squash.

How to Plant Spaghetti Squash

1"
Planting Depth
30"
Between Plants
42"
Between Rows

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Spaghetti Squash

Spaghetti Squash needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Spaghetti Squash Needs Rainfall You Supplement Action
Jan 4.2" 0" ❄️ Dormant
Feb 4.5" 0" ❄️ Dormant
Mar 4.3" 4.5" 0" ✅ Rainfall sufficient
Apr 4.3" 4.4" 0" ✅ Rainfall sufficient
May 4.3" 4" 0.3" 💧 Light watering
Jun 4.3" 4" 0.3" 💧 Light watering
Jul 4.3" 5.9" 0" ✅ Rainfall sufficient
Aug 4.3" 4.2" 0.1" 💧 Light watering
Sep 4.3" 3.5" 0.8" 💧 Light watering
Oct 4.3" 3.6" 0.7" 💧 Light watering
Nov 4.3" 3.4" 0.9" 💧 Light watering
Dec 4" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Walthall County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Spaghetti Squash Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Spaghetti Squash needs ~1,619 GDD — county provides 4,305 GDD Excellent fit

Spaghetti Squash Planting Timeline — Walthall County, MS

Spaghetti Squash Planting Calendar

Activity When Date Range
Start Indoors February 15 Feb 15 – Mar 1
Transplant Outdoors March 29 Mar 29 – Apr 12
Direct Sow March 22 Mar 22 – Apr 12
Harvest June 28 Jun 28 – Jul 26

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

85–100 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

246 days in Walthall County

Growing Tips for Spaghetti Squash in Walthall County

Direct sow Spaghetti Squash outdoors after March 15 in Walthall County when soil has warmed and frost danger has passed.

With Walthall County's clay soil (34% clay), work in 3-4 inches of compost before planting Spaghetti Squash. Avoid tilling when soil is wet to prevent compaction.

Common pests for Spaghetti Squash in this region include squash vine borer and cucumber beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow on mounds after last frost. Harvest when skin turns golden yellow and is hard. Store in a cool, dry place for 2-3 months. Bake or microwave halves until tender.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Spaghetti Squash in Walthall County, MS?

Walthall County is in Zone 8b with an average last frost of March 15. Plan your Spaghetti Squash planting based on this frost date — see the calendar above for exact timing.

What planting zone is Walthall County, MS?

Walthall County, Mississippi is in USDA Hardiness Zone 8b. The average last spring frost is March 15 and first fall frost is November 16.

🌱

Your Walthall County Garden Planner — Free

A 24-page printable planner built for Walthall County (Zone 8b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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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 Walthall County, MS. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.