Warm-Season Vegetable

When to Plant Watermelon in Florida

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

The Short Answer

Florida is the nation's #1 watermelon producer for good reason — the state's long, warm growing season is watermelon paradise. Home gardeners can harvest watermelons months before northern gardeners even think about planting. Florida-grown watermelons hit peak sweetness in May and June, when the rest of the country is still watching seedlings grow.

Florida Frost Dates

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

Region Zones Last Frost (Spring) First Frost (Fall)
North Florida 8a, 8b, 9a Feb 15 - Mar 10 Nov 15 - Dec 10
Central Florida 9a, 9b, 10a Jan 15 - Feb 10 Dec 10 - Jan 5
South Florida 10a, 10b, 11a Rare Rare

Watermelon Planting Schedule for Florida

North Florida (Zones 8a, 8b, 9a)

Average last frost: Feb 15 - Mar 10 · Average first frost: Nov 15 - Dec 10

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

Central Florida (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

South Florida (Zones 10a, 10b, 11a)

Average last frost: Rare · Average first frost: Rare

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

Growing Watermelon in Florida

State-Specific Growing Tips

North Florida: transplant from mid-March. Central Florida: transplant from late February. South Florida: transplant from January. Florida's sandy soils drain well for watermelons but hold no nutrients or moisture — build soil with compost and irrigate regularly. Black plastic mulch suppresses weeds and warms sandy soil. Plant on raised hills for maximum drainage. UF/IFAS Extension's watermelon production guide is comprehensive and Florida-specific.

Recommended Varieties for Florida

Crimson Sweet, Jubilee, and Royal Sweet are Florida standards. UF/IFAS has developed varieties specifically for Florida conditions — check their recommendations. For small gardens, Sugar Baby and Mickeylee produce smaller fruits on shorter vines. Seedless varieties require a seeded pollinator variety planted nearby.

Common Challenges in Florida

Fusarium wilt is the primary disease — use resistant varieties and rotate locations on a 5-year cycle. Gummy stem blight and anthracnose in humid conditions. Aphids and whiteflies transmit mosaic viruses. Rind necrosis causes internal browning — maintain consistent moisture and fertility. Nematodes in sandy soils attack roots.

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 Florida with proper attention to regional frost dates and local growing conditions. Timing varies across the state — North Florida gardeners work with a last frost around Feb 15 - Mar 10, while South Florida sees frost end around Rare. 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 Florida Planting Calendar All plants for Florida 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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