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When to plant Butternut Squash in Jasper County County,

For Butternut Squash in Jasper County County, the safe spring window opens around March 22 and closes around April 12. Last expected frost is March 15, first fall frost November 12, giving a 242-day growing season.

When to Plant Butternut Squash in Jasper County, MS

Jasper County, Mississippi Zone 8b June

Top priorities for Jasper County, Mississippi gardeners in June

Welcome to June 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 12
Soil temp (4") 81°F
Watering Low
Pest pressure High
Daylight 14.1 hrs
  1. Bring in the butternut squash

    If you can't use it all right away, check the food-preservation section of your planner.

Get ahead of July
  • First harvests: butternut squash

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Butternut squash is a popular winter squash with a long neck, small seed cavity, and sweet, nutty orange flesh. It stores exceptionally well for months.

Jasper County, Mississippi is in USDA Zone 8b. The average last spring frost is March 15 and the first fall frost is November 12, giving you a growing season of approximately 242 days.

At an elevation of 468 feet, Jasper County receives approximately 53.1 inches of rainfall annually with predominantly clay loam soil. Summer highs average 94°F, providing good warmth for Butternut Squash during the growing season. Clay soil retains moisture well for Butternut Squash, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Butternut Squash root diseases.

Jasper County, MS (Zone 8b) Long season
242 days
Last Spring Frost March 15
242 growing days
First Fall Frost November 12

Jasper County Soil Profile

Soil Type

Clay Loam

Soil pH

5.5-6.6

Drainage

Well Drained

Butternut Squash Planting Risk Windows

Early Start (70% safe) ✓ Fits season (101 days to spare)
Start indoors: Feb 6 Transplant: Mar 20 🍅 Harvest: Jun 19 – Jul 24
Recommended (50%) ✓ Fits season (102 days to spare)
Start indoors: Feb 15 Transplant: Mar 29 🍅 Harvest: Jun 28 – Aug 2
Safe Start (90%) ✓ Fits season (96 days to spare)
Start indoors: Mar 10 Transplant: Apr 21 🍅 Harvest: Jul 21 – Aug 25

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 Jasper County

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

Soil pH

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

Soil Texture

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

Organic Matter

Organic matter is moderate (2.8%). Annual compost additions will help Butternut Squash.

How to Plant Butternut Squash

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

Butternut Squash Water Budget

Plant needs
1.1″/week
Rainfall provides
0.9″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 384 gal / 100 sq ft

Monthly Watering Guide for Butternut Squash

Butternut Squash needs approximately 1.1 inches of water per week (4.8" per month). Here's how your county's rainfall compares month by month.

Month Butternut Squash Needs Rainfall You Supplement Action
Jan 4.5" 0" ❄️ Dormant
Feb 3.9" 0" ❄️ Dormant
Mar 4.8" 5.1" 0" ✅ Rainfall sufficient
Apr 4.8" 4.4" 0.4" 💧 Light watering
May 4.8" 4.5" 0.3" 💧 Light watering
Jun 4.8" 4.2" 0.6" 💧 Light watering
Jul 4.8" 4.9" 0" ✅ Rainfall sufficient
Aug 4.8" 5.3" 0" ✅ Rainfall sufficient
Sep 4.8" 3.7" 1.1" 💧 Light watering
Oct 4.8" 3.9" 0.9" 💧 Light watering
Nov 4.8" 3.7" 1.1" 💧 Light watering
Dec 5" 0" ❄️ Dormant

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

Butternut 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.

Butternut Squash needs ~1,999 GDD — county provides 4,961 GDD Excellent fit

Butternut Squash Planting Timeline — Jasper County, MS

Butternut 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 – Aug 2

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 Harvest
September
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.1"/week · Only during dry spells

📅 Days to Maturity

85–110 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

242 days in Jasper County

Growing Tips for Butternut Squash in Jasper County

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

With Jasper County's clay soil (27% clay), work in 3-4 inches of compost before planting Butternut Squash. Avoid tilling when soil is wet to prevent compaction.

Common pests for Butternut 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

Start seeds indoors 3 weeks early or direct sow after frost. Allow 6-8 feet for sprawling vines. Harvest when the skin is hard and uniformly tan. Cure in the sun for 10 days.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Butternut Squash in Jasper County, MS?

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

What planting zone is Jasper County, MS?

Jasper County, Mississippi is in USDA Hardiness Zone 8b. The average last spring frost is March 15 and first fall frost is November 12.

When should I plant Butternut Squash in Jasper County County, ?

In Jasper County County, , plant Butternut Squash after the last frost (around March 15) and before the first frost (around November 12). Best results when soil holds above 50°F.

What growing zone is Jasper County County, for Butternut Squash?

Jasper County County sits in USDA Zone 8b. Butternut Squash grows reliably in zones 3a through 11b, so it's a good fit here.

Can Butternut Squash grow in Jasper County County's climate?

Yes — Butternut Squash grows well in Jasper County County's temperate climate. Jasper County County averages a 242-day frost-free season, with last frost around March 15 and first frost around November 12.

🌱

Your Jasper County Garden Planner — Free

A 22-page printable planner built for Jasper 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 Jasper County, MS. Local conditions may vary. Last updated: June 2026.

Sources & credits

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