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When to plant Pumpkin in Clark County County,

For Pumpkin in Clark County County, the safe spring window opens around March 29 and closes around April 19. Last expected frost is March 22, first fall frost November 9, giving a 232-day growing season.

When to Plant Pumpkin in Clark County, AR

Pumpkin
Clark County, Arkansas Zone 8a June

Clark County, Arkansas gardeners: here's your June plan

Each item below is timed to Clark County, Arkansas's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost March 22
Avg. first frost November 9
Soil temp (4") 77°F
Watering Low
Pest pressure High
Daylight 14.3 hrs
Looking ahead to July
  • 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.

Clark County, Arkansas is in USDA Zone 8a. The average last spring frost is March 22 and the first fall frost is November 9, giving you a growing season of approximately 232 days.

At an elevation of 1,350 feet, Clark County receives approximately 45.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 91°F, providing good warmth for Pumpkin during the growing season.

Clark County, AR (Zone 8a) Long season
232 days
Last Spring Frost March 22
232 growing days
First Fall Frost November 9
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Clark County Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-6.7

Drainage

Well Drained

Pumpkin Planting Risk Windows

Early Start (70% safe) ✓ Fits season (78 days to spare)
Start indoors: Feb 13 Transplant: Mar 27 🍅 Harvest: Jun 26 – Aug 14
Recommended (50%) ✓ Fits season (78 days to spare)
Start indoors: Feb 22 Transplant: Apr 5 🍅 Harvest: Jul 5 – Aug 23
Safe Start (90%) ✓ Fits season (74 days to spare)
Start indoors: Mar 15 Transplant: Apr 26 🍅 Harvest: Jul 26 – Sep 13

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 Clark County

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

Soil pH

Your soil pH (5.7–6.7) overlaps with Pumpkin's range (6.0–7.5), though not a perfect match.

Soil Texture

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

Drainage

Drainage is adequate for Pumpkin.

Organic Matter

Organic matter is moderate (2.5%). 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
0.8″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 189 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 4.2" 0" ❄️ Dormant
Feb 3.6" 0" ❄️ Dormant
Mar 5.6" 3.6" 2" 💧 Light watering
Apr 5.6" 3.8" 1.8" 💧 Light watering
May 5.6" 3.3" 2.3" 💧 Light watering
Jun 5.6" 3.9" 1.7" 💧 Light watering
Jul 5.6" 5.1" 0.5" 💧 Light watering
Aug 5.6" 4" 1.6" 💧 Light watering
Sep 5.6" 3.7" 1.9" 💧 Light watering
Oct 5.6" 2.5" 3.1" 🚿 Regular watering
Nov 5.6" 3.5" 2.1" 💧 Light watering
Dec 3.9" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Clark 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 ~1,871 GDD — county provides 4,234 GDD Excellent fit

Pumpkin Planting Timeline — Clark County, AR

Pumpkin Planting Calendar

Activity When Date Range
Start Indoors February 22 Feb 22 – Mar 8
Transplant Outdoors April 5 Apr 5 – Apr 19
Direct Sow March 29 Mar 29 – Apr 19
Harvest July 5 Jul 5 – Aug 23

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
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.3"/week · Only during dry spells

📅 Days to Maturity

85–120 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 8a

📆 Growing Season

232 days in Clark County

Growing Tips for Pumpkin in Clark County

Direct sow Pumpkin outdoors after March 22 in Clark 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 Clark County, AR?

Clark County is in Zone 8a with an average last frost of March 22. Plan your Pumpkin planting based on this frost date — see the calendar above for exact timing.

What planting zone is Clark County, AR?

Clark County, Arkansas is in USDA Hardiness Zone 8a. The average last spring frost is March 22 and first fall frost is November 9.

When should I plant Pumpkin in Clark County, ?

In Clark County, , plant Pumpkin after the last frost (around March 22) and before the first frost (around November 9). Best results when soil holds above 50°F.

What growing zone is Clark County, for Pumpkin?

Clark 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 Clark County's climate?

Yes — Pumpkin grows well in Clark County's temperate climate. Clark County averages a 232-day frost-free season, with last frost around March 22 and first frost around November 9.

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Your Clark County Garden Planner — Free

A 22-page printable planner built for Clark 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.

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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 Clark 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.