Warm-Season Vegetable

When to Plant Watermelon in Texas

The ultimate summer treat. Watermelons need heat, space, and patience — but the payoff is pure joy.

The Short Answer

Texas is watermelon country. The state is one of the top watermelon producers in the nation, and the climate from central Texas southward is ideal for growing the biggest, sweetest melons you'll ever taste. Texas heat that withers other crops is exactly what watermelons crave, and the long growing season means even 100-day varieties have plenty of time.

Texas Frost Dates

Your planting dates depend on which part of Texas you're in. Here are the frost date ranges by region:

Region Zones Last Frost (Spring) First Frost (Fall)
North Texas (Dallas) 7b, 8a Mar 10 - Mar 25 Nov 5 - Nov 20
Central Texas (Austin/SA) 8a, 8b Feb 25 - Mar 15 Nov 15 - Dec 5
South Texas (Valley) 9a, 9b, 10a Jan 15 - Feb 10 Dec 10 - Jan 5
Texas Panhandle 6b, 7a Apr 10 - Apr 25 Oct 10 - Oct 25
East Texas 8a, 8b Mar 1 - Mar 20 Nov 10 - Nov 25

Watermelon Planting Schedule for Texas

North Texas (Dallas) (Zones 7b, 8a)

Average last frost: Mar 10 - Mar 25 · Average first frost: Nov 5 - Nov 20

Start Seeds Indoors
3 wks before frost
Transplant Outside
2 wks after frost
Direct Sow
3 wks after frost

Central Texas (Austin/SA) (Zones 8a, 8b)

Average last frost: Feb 25 - Mar 15 · Average first frost: Nov 15 - Dec 5

Start Seeds Indoors
3 wks before frost
Transplant Outside
2 wks after frost
Direct Sow
3 wks after frost

South Texas (Valley) (Zones 9a, 9b, 10a)

Average last frost: Jan 15 - Feb 10 · Average first frost: Dec 10 - Jan 5

Start Seeds Indoors
3 wks before frost
Transplant Outside
2 wks after frost
Direct Sow
3 wks after frost

Texas Panhandle (Zones 6b, 7a)

Average last frost: Apr 10 - Apr 25 · Average first frost: Oct 10 - Oct 25

Start Seeds Indoors
3 wks before frost
Transplant Outside
2 wks after frost
Direct Sow
3 wks after frost

East Texas (Zones 8a, 8b)

Average last frost: Mar 1 - Mar 20 · Average first frost: Nov 10 - Nov 25

Start Seeds Indoors
3 wks before frost
Transplant Outside
2 wks after frost
Direct Sow
3 wks after frost

Growing Watermelon in Texas

State-Specific Growing Tips

North Texas: transplant in late March to early April. Central Texas: transplant from mid-March. South Texas: transplant from late February. Texas's heat is watermelon's best friend — the crop thrives in conditions that stress most other vegetables. Sandy east Texas soils are naturally ideal. In the alkaline clay of north-central Texas, build raised mounds and amend with compost and sulfur. Watermelons are heavy feeders and heavy drinkers during fruit development — drip irrigation on a schedule prevents the inconsistent moisture that causes cracking. Stop watering a week before harvest for maximum sweetness.

Recommended Varieties for Texas

Crimson Sweet is the Texas classic — large, sweet, and reliable. Black Diamond for massive fruits. Yellow Doll for smaller yellow-flesh melons. Texas A&M recommends StarBrite and Sangria for disease resistance. In the Valley, try Jubilee — it handles extreme heat beautifully.

Common Challenges in Texas

Spider mites in hot, dry conditions. Aphids on young growth. Fusarium wilt in soils where melons have been grown previously — rotate locations. Fire ants disturb plantings and damage rinds touching the ground — place a board or mulch under each melon. Vine decline (sudden wilt) can occur mid-season in south Texas.

Growing Tips

Black plastic mulch warms soil faster. Check ripeness by looking for a yellow ground spot and listening for a hollow thump.

Companion Planting

Plant watermelon alongside these companions for better growth:

Corn Sunflowers Marigolds

Keep watermelon away from:

Potatoes

The Bottom Line

Watermelon can be grown successfully in Texas with proper attention to regional frost dates and local growing conditions. Timing varies across the state — North Texas (Dallas) gardeners work with a last frost around Mar 10 - Mar 25, while East Texas sees frost end around Mar 1 - Mar 20. Choose varieties suited to your region, amend your soil based on its specific needs, and monitor for the pests and diseases most common in your area. For exact dates based on your zip code, use our free planting date finder.

Related Guides

Watermelon Growing Guide National planting guide with all states Texas Planting Calendar All plants for Texas Watermelon in Alabama Alabama planting dates Watermelon in Alaska Alaska planting dates Watermelon in Arizona Arizona planting dates Watermelon in Arkansas Arkansas planting dates
Note: All dates are based on NOAA 30-year Climate Normals and represent historical averages, not predictions for any specific year. Always check your local weather forecast before planting frost-sensitive crops. Learn about our data sources.

Last reviewed: March 29, 2026

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