Planting and care
How to grow watermelon
When to grow
Warm season · Annual
How to start
Direct seed or transplant after soil warms
Mature size
Vines roughly 6–12+ ft
Time to harvest
About 75–100 days from seed; large or long-season varieties may take longer.
Feeding needs
Heavy feeder
Growth habit
Large Sprawler
How to prune
Guide vines outward and remove diseased growth only. Avoid stripping leaves, which feed and shade the fruit. Use strong supports and slings only for suitable small-fruited types.
How to harvest
Look for several cues together: a creamy-yellow ground spot, duller rind and a drying tendril closest to the fruit. Clip the stem; watermelon does not become sweeter after picking.
Harvest and kitchen use
Fresh fruit
Nutrition and garden value
Hydrating fruit; red types provide lycopene
High-excitement family crop when enough space is available
Common challenges and troubleshooting
Space demand, beetles, wilt, mildew and animal damage