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When to Plant Pumpkin in Rankin County, MS

Rankin County, Mississippi Zone 8b May

This month in Rankin County, Mississippi

A quick May briefing for Rankin County, Mississippi gardeners — what's urgent, what's next, and what can wait.

Avg. last frost March 17
Avg. first frost November 13
Soil temp (4") 72°F
Watering Low
Pest pressure High
Daylight 13.7 hrs
June will be here before you know it — start on
  • 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.

Rankin County, Mississippi is in USDA Zone 8b. The average last spring frost is March 17 and the first fall frost is November 13, giving you a growing season of approximately 241 days.

At an elevation of 348 feet, Rankin County receives approximately 51.4 inches of rainfall annually with predominantly clay loam soil. Summer highs average 95°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.

Rankin County, MS (Zone 8b) Long season
241 days
Last Spring Frost March 17
241 growing days
First Fall Frost November 13

Rankin County Soil Profile

Soil Type

Clay Loam

Soil pH

5.5-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (89 days to spare)
Start indoors: Feb 6 Transplant: Mar 20 🍅 Harvest: Jun 19 – Aug 7
Recommended (50%) ✓ Fits season (87 days to spare)
Start indoors: Feb 17 Transplant: Mar 31 🍅 Harvest: Jun 30 – Aug 18
Safe Start (90%) ✓ Fits season (86 days to spare)
Start indoors: Mar 7 Transplant: Apr 18 🍅 Harvest: Jul 18 – Sep 5

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 Rankin County

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

Soil pH

Your soil pH (5.5–6.5) overlaps with Pumpkin's range (6.0–7.5), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.4%). 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
0.9″/week
You supply
0.4″/week
Watering frequency 1-2 times/week
Season total 867 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 4.3" 0" ❄️ Dormant
Feb 4" 0" ❄️ Dormant
Mar 5.6" 4.8" 0.8" 💧 Light watering
Apr 5.6" 4.1" 1.5" 💧 Light watering
May 5.6" 4" 1.6" 💧 Light watering
Jun 5.6" 5.1" 0.5" 💧 Light watering
Jul 5.6" 5.7" 0" ✅ Rainfall sufficient
Aug 5.6" 4.3" 1.3" 💧 Light watering
Sep 5.6" 3.5" 2.1" 💧 Light watering
Oct 5.6" 3.4" 2.2" 💧 Light watering
Nov 5.6" 4.1" 1.5" 💧 Light watering
Dec 4.1" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Rankin 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 ~2,178 GDD — county provides 5,121 GDD Excellent fit

Pumpkin Planting Timeline — Rankin County, MS

Pumpkin Planting Calendar

Activity When Date Range
Start Indoors February 17 Feb 17 – Mar 3
Transplant Outdoors March 31 Mar 31 – Apr 14
Direct Sow March 24 Mar 24 – Apr 14
Harvest June 30 Jun 30 – Aug 18

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

1.3"/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

241 days in Rankin County

Growing Tips for Pumpkin in Rankin County

Direct sow Pumpkin outdoors after March 17 in Rankin County when soil has warmed and frost danger has passed.

With Rankin County's clay soil (28% clay), work in 3-4 inches of compost before planting Pumpkin. Avoid tilling when soil is wet to prevent compaction.

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 Rankin County, MS?

Rankin County is in Zone 8b with an average last frost of March 17. Plan your Pumpkin planting based on this frost date — see the calendar above for exact timing.

What planting zone is Rankin County, MS?

Rankin County, Mississippi is in USDA Hardiness Zone 8b. The average last spring frost is March 17 and first fall frost is November 13.

🌱

Your Rankin County Garden Planner — Free

A 24-page printable planner built for Rankin 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 Rankin 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.