Blog

When to plant Pumpkin in Grant County County,

Grant County County's climate puts the Pumpkin spring window between March 27 and April 17. most warm-season crops establish quickly once soil holds above 60°F.

When to Plant Pumpkin in Grant County, AR

Pumpkin
Grant County, Arkansas Zone 8a June

June to-do list for Grant County, Arkansas

Your garden in Grant County, Arkansas is working on a schedule, even when you're not. Here's where you should be this June.

Avg. last frost March 20
Avg. first frost November 11
Soil temp (4") 77°F
Watering Low
Pest pressure High
Daylight 14.3 hrs
Before July arrives, get these ready
  • First harvests: pumpkin

Instant PDF download. No spam, unsubscribe any time.

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

Grant County, Arkansas is in USDA Zone 8a. The average last spring frost is March 20 and the first fall frost is November 11, giving you a growing season of approximately 236 days.

At an elevation of 498 feet, Grant County receives approximately 51.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 94°F, providing good warmth for Pumpkin during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Pumpkin root diseases.

Grant County, AR (Zone 8a) Long season
236 days
Last Spring Frost March 20
236 growing days
First Fall Frost November 11

Grant County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-6.6

Drainage

Well Drained

Pumpkin Planting Risk Windows

Early Start (70% safe) ✓ Fits season (80 days to spare)
Start indoors: Feb 13 Transplant: Mar 27 🍅 Harvest: Jun 26 – Aug 14
Recommended (50%) ✓ Fits season (82 days to spare)
Start indoors: Feb 20 Transplant: Apr 3 🍅 Harvest: Jul 3 – Aug 21
Safe Start (90%) ✓ Fits season (80 days to spare)
Start indoors: Mar 12 Transplant: Apr 23 🍅 Harvest: Jul 23 – Sep 10

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 Grant County

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

Soil pH

Your soil pH (5.3–6.6) is more acidic than Pumpkin prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.7%). Annual compost additions will help Pumpkin.

How to Plant Pumpkin

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

Pumpkin 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 817 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 3.9" 0" ❄️ Dormant
Feb 4.6" 0" ❄️ Dormant
Mar 5.6" 4.4" 1.2" 💧 Light watering
Apr 5.6" 3.8" 1.8" 💧 Light watering
May 5.6" 3.6" 2" 💧 Light watering
Jun 5.6" 4.2" 1.4" 💧 Light watering
Jul 5.6" 5" 0.6" 💧 Light watering
Aug 5.6" 5.5" 0.1" 💧 Light watering
Sep 5.6" 3.6" 2" 💧 Light watering
Oct 5.6" 3.7" 1.9" 💧 Light watering
Nov 5.6" 4.4" 1.2" 💧 Light watering
Dec 4.3" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Grant 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 ~2,101 GDD — county provides 4,838 GDD Excellent fit

Pumpkin Planting Timeline — Grant County, AR

Pumpkin Planting Calendar

Activity When Date Range
Start Indoors February 20 Feb 20 – Mar 6
Transplant Outdoors April 3 Apr 3 – Apr 17
Direct Sow March 27 Mar 27 – Apr 17
Harvest July 3 Jul 3 – Aug 21

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

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March Start Indoors Direct Sow
April Transplant Outdoors Direct Sow
May
June
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: too_acidic

🗺️ USDA Zone

Zone 8a

📆 Growing Season

236 days in Grant County

Growing Tips for Pumpkin in Grant County

Direct sow Pumpkin outdoors after March 20 in Grant County when soil has warmed and frost danger has passed.

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 Grant County, AR?

Grant County is in Zone 8a with an average last frost of March 20. Plan your Pumpkin planting based on this frost date — see the calendar above for exact timing.

What planting zone is Grant County, AR?

Grant County, Arkansas is in USDA Hardiness Zone 8a. The average last spring frost is March 20 and first fall frost is November 11.

When should I plant Pumpkin in Grant County County, ?

In Grant County County, , plant Pumpkin after the last frost (around March 20) and before the first frost (around November 11). Best results when soil holds above 50°F.

What growing zone is Grant County County, for Pumpkin?

Grant County County sits in USDA Zone 8a. Pumpkin grows reliably in zones 3a through 10b, so it's a good fit here.

Can Pumpkin grow in Grant County County's climate?

Yes — Pumpkin grows well in Grant County County's temperate climate. Grant County County averages a 236-day frost-free season, with last frost around March 20 and first frost around November 11.

🌱

Your Grant County Garden Planner — Free

A 22-page printable planner built for Grant County (Zone 8a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Grant County, AR. Local conditions may vary. Last updated: June 2026.

Sources & credits

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