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When to Plant Watermelon in Drew County, AR

Watermelon is a sprawling vine crop that produces sweet, juicy fruits in hot weather. Varieties range from personal-sized icebox types to 50-pound giants.

Drew County, Arkansas is in USDA Zone 8a. The average last spring frost is March 18 and the first fall frost is November 10, giving you a growing season of approximately 237 days.

At an elevation of 1,158 feet, Drew County receives approximately 54.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90ยฐF, providing good warmth for Watermelon during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Watermelon root diseases.

Drew County, AR (Zone 8a) Long season
237 days
Last Spring Frost March 18
237 growing days
First Fall Frost November 10

Drew County Soil Profile

Soil Type

Silt Loam

Soil pH

5.6-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (103 days to spare)
Start indoors: Feb 9 Transplant: Mar 23 🍅 Harvest: Jun 1 – Jul 20
Recommended (50%) ✓ Fits season (104 days to spare)
Start indoors: Feb 18 Transplant: Apr 1 🍅 Harvest: Jun 10 – Jul 29
Safe Start (90%) ✓ Fits season (102 days to spare)
Start indoors: Mar 11 Transplant: Apr 22 🍅 Harvest: Jul 1 – Aug 19

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 Drew County

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

Soil pH

Your soil pH (5.6โ€“6.8) overlaps with Watermelon's range (6.0โ€“7.5), though not a perfect match.

Soil Texture

The silt loam soil in Drew County is excellent for Watermelon โ€” good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.5%). Annual compost additions will help Watermelon.

How to Plant Watermelon

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

Succession Planting Watermelon

3
successive plantings in your 237-day season

Sow every 8 weeks. Last sowing by Aug 02 to harvest before frost.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
1.0″/week
You supply
0.5″/week
Watering frequency 1-2 times/week
Season total 1,119 gal / 100 sq ft

Monthly Watering Guide for Watermelon

Watermelon needs approximately 1.5 inches of water per week (6.5" per month). Here's how your county's rainfall compares month by month.

Month Watermelon Needs Rainfall You Supplement Action
Jan โ€” 4.8" 0" โ„๏ธ Dormant
Feb โ€” 3.9" 0" โ„๏ธ Dormant
Mar 6.5" 5.2" 1.3" ๐Ÿ’ง Light watering
Apr 6.5" 4.5" 2" ๐Ÿ’ง Light watering
May 6.5" 4.9" 1.6" ๐Ÿ’ง Light watering
Jun 6.5" 5" 1.5" ๐Ÿ’ง Light watering
Jul 6.5" 5.7" 0.8" ๐Ÿ’ง Light watering
Aug 6.5" 5.5" 1" ๐Ÿ’ง Light watering
Sep 6.5" 3.7" 2.8" ๐Ÿ’ง Light watering
Oct 6.5" 3.4" 3.1" ๐Ÿ’ง Light watering
Nov 6.5" 4.4" 2.1" ๐Ÿ’ง Light watering
Dec โ€” 3.8" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Drew County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Watermelon 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" โ€” every day above 50ยฐF 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.

Watermelon needs ~1,488 GDD — county provides 4,147 GDD Excellent fit

Watermelon Planting Timeline โ€” Drew County, AR

Watermelon Planting Calendar

Activity When Date Range
Start Indoors February 18 Feb 18 โ€“ Mar 4
Transplant Outdoors April 1 Apr 1 โ€“ Apr 15
Direct Sow March 25 Mar 25 โ€“ Apr 15
Harvest June 10 Jun 10 โ€“ Jul 29

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

1.5"/week ยท 1-2 times/week

๐Ÿ“… Days to Maturity

70โ€“100 days

๐Ÿงช Soil pH

Needs 6โ€“7.5 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 8a

๐Ÿ“† Growing Season

237 days in Drew County

Growing Tips for Watermelon in Drew County

Direct sow Watermelon outdoors after March 18 in Drew County when soil has warmed and frost danger has passed.

Common pests for Watermelon 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 3-4 weeks early or direct sow after soil is warm. Plant on mounds with plenty of space. Check ripeness by looking for a yellow ground spot and dull thump when tapped.

Recommended Watermelon Varieties for Drew County

Full-size melons that thrive with your long season

Crimson Sweet (85d) Charleston Gray (85d) Moon and Stars (95d)

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Watermelon in Drew County, AR?

Drew County is in Zone 8a with an average last frost of March 18. Plan your Watermelon planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Drew County, AR?

Drew County, Arkansas is in USDA Hardiness Zone 8a. The average last spring frost is March 18 and first fall frost is November 10.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Drew County gardeners in Zone 8a organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

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