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When to Plant Watermelon in Crawford 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.

Crawford County, Arkansas is in USDA Zone 7a. The average last spring frost is March 26 and the first fall frost is November 3, giving you a growing season of approximately 222 days.

At an elevation of 902 feet, Crawford County receives approximately 52.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 94ยฐF, providing good warmth for Watermelon during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Watermelon root diseases.

Crawford County, AR (Zone 7a) Long season
222 days
Last Spring Frost March 26
222 growing days
First Fall Frost November 3

Crawford County Soil Profile

Soil Type

Silt Loam

Soil pH

5.5-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (91 days to spare)
Start indoors: Feb 19 Transplant: Apr 2 🍅 Harvest: Jun 11 – Jul 30
Recommended (50%) ✓ Fits season (89 days to spare)
Start indoors: Feb 26 Transplant: Apr 9 🍅 Harvest: Jun 18 – Aug 6
Safe Start (90%) ✓ Fits season (92 days to spare)
Start indoors: Mar 17 Transplant: Apr 28 🍅 Harvest: Jul 7 – Aug 25

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.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.0″/week
You supply
0.0″/week
Watering frequency Only during dry spells
Season total 28 gal / 100 sq ft
Watermelon needs ~1,742 GDD — county provides 4,551 GDD Excellent fit

Watermelon Planting Timeline โ€” Crawford County, AR

Watermelon Planting Calendar

Activity When Date Range
Start Indoors February 26 Feb 26 โ€“ Mar 12
Transplant Outdoors April 9 Apr 9 โ€“ Apr 23
Direct Sow April 2 Apr 2 โ€“ Apr 23
Harvest June 18 Jun 18 โ€“ Aug 6

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

70โ€“100 days

Soil pH

6 โ€“ 7.5

USDA Zone

Zone 7a

Growing Season

222 days

Growing Tips for Crawford County

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.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Level Up Your Garden

Frequently Asked Questions

When should I plant Watermelon in Crawford County, AR?

Crawford County is in Zone 7a with an average last frost of March 26. Plan your Watermelon planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Crawford County, AR?

Crawford County, Arkansas is in USDA Hardiness Zone 7a. The average last spring frost is March 26 and first fall frost is November 3.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Crawford County gardeners in Zone 7a organize planting dates, track what's growing, and never miss a planting window.

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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 Crawford County, AR. Local conditions may vary. Last updated: April 2026.