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When to Plant Pumpkin in Bolivar County, MS

Bolivar County, Mississippi Zone 8b May

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

We've pulled the most time-sensitive tasks for Bolivar County, Mississippi this May and put them front and centre. Tackle them in order.

Avg. last frost March 12
Avg. first frost November 11
Soil temp (4") 73°F
Watering Low
Pest pressure High
Daylight 13.8 hrs
A few tasks this May that'll pay off in June
  • First harvests: pumpkin

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Pumpkins are large-fruited squash varieties grown for eating, decoration, and seed production. They require ample space and a long, warm growing season.

Bolivar County, Mississippi is in USDA Zone 8b. The average last spring frost is March 12 and the first fall frost is November 11, giving you a growing season of approximately 244 days.

At an elevation of 299 feet, Bolivar County receives approximately 56.1 inches of rainfall annually with predominantly clay loam soil. Summer highs average 97°F, so Pumpkin may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Pumpkin, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Pumpkin root diseases.

Bolivar County, MS (Zone 8b) Long season
244 days
Last Spring Frost March 12
244 growing days
First Fall Frost November 11
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Bolivar County Soil Profile

Soil Type

Clay Loam

Soil pH

5.6-6.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (89 days to spare)
Start indoors: Feb 5 Transplant: Mar 19 🍅 Harvest: Jun 18 – Aug 6
Recommended (50%) ✓ Fits season (90 days to spare)
Start indoors: Feb 12 Transplant: Mar 26 🍅 Harvest: Jun 25 – Aug 13
Safe Start (90%) ✓ Fits season (86 days to spare)
Start indoors: Mar 6 Transplant: Apr 17 🍅 Harvest: Jul 17 – Sep 4

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 Bolivar County

How your county's soil matches Pumpkin's growing requirements.

Soil pH

Your soil pH (5.6–6.6) overlaps with Pumpkin's range (6.0–7.5), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.1%). Annual compost additions will help Pumpkin.

How to Plant Pumpkin

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

Plant Water Budget

Plant needs
1.3″/week
Rainfall provides
1.0″/week
You supply
0.3″/week
Watering frequency 1-2 times/week
Season total 726 gal / 100 sq ft

Monthly Watering Guide for Pumpkin

Pumpkin needs approximately 1.3 inches of water per week (5.6" per month). Here's how your county's rainfall compares month by month.

Month Pumpkin Needs Rainfall You Supplement Action
Jan 5" 0" ❄️ Dormant
Feb 4.3" 0" ❄️ Dormant
Mar 5.6" 4.6" 1" 💧 Light watering
Apr 5.6" 4.1" 1.5" 💧 Light watering
May 5.6" 4.7" 0.9" 💧 Light watering
Jun 5.6" 5.4" 0.2" 💧 Light watering
Jul 5.6" 5.4" 0.2" 💧 Light watering
Aug 5.6" 4.9" 0.7" 💧 Light watering
Sep 5.6" 4" 1.6" 💧 Light watering
Oct 5.6" 4" 1.6" 💧 Light watering
Nov 5.6" 4.8" 0.8" 💧 Light watering
Dec 5" 0" ❄️ Dormant

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

Pumpkin 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.

Pumpkin needs ~2,332 GDD — county provides 5,551 GDD Excellent fit

Pumpkin Planting Timeline — Bolivar County, MS

Pumpkin Planting Calendar

Activity When Date Range
Start Indoors February 12 Feb 12 – Feb 26
Transplant Outdoors March 26 Mar 26 – Apr 9
Direct Sow March 19 Mar 19 – Apr 9
Harvest June 25 Jun 25 – Aug 13

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.3"/week · 1-2 times/week

📅 Days to Maturity

85–120 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

244 days in Bolivar County

Growing Tips for Pumpkin in Bolivar County

Direct sow Pumpkin outdoors after March 12 in Bolivar County when soil has warmed and frost danger has passed.

With Bolivar County's clay soil (30% clay), work in 3-4 inches of compost before planting Pumpkin. Avoid tilling when soil is wet to prevent compaction.

With summer highs reaching 97°F in Bolivar County, provide afternoon shade for Pumpkin and water deeply in the morning.

Common pests for Pumpkin 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. Allow 6-10 feet between plants. Slip a board under developing fruit to prevent rot. Harvest when rind is hard and deep in color.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Pumpkin in Bolivar County, MS?

Bolivar County is in Zone 8b with an average last frost of March 12. Plan your Pumpkin planting based on this frost date — see the calendar above for exact timing.

What planting zone is Bolivar County, MS?

Bolivar County, Mississippi is in USDA Hardiness Zone 8b. The average last spring frost is March 12 and first fall frost is November 11.

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Your Bolivar County Garden Planner — Free

A 24-page printable planner built for Bolivar 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 Bolivar 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.