Watermelon (Citrullus lanatus): Nutrition, Growing Tips, and Delicious Recipes

Modern breeding has elevated watermelon’s nutritional profile. Native to Africa’s Kalahari Desert, it evolved under extreme UV, heat, and drought—packing serious antioxidant power. Beyond refreshment, it’s used in cosmetics for skin protection. As farm stand owner Chris Chiaccio says: “I feel better when I eat watermelon.”

Why You Feel Good

1. Hydration: 90% water.
2. Natural energy: Fruit sugars.
3. Nutrient density: Vitamins, minerals, antioxidants.

Nutrition Snapshot (per 100g / ~8 melon balls)

• Lycopene: 4,532 µg
• Beta carotene: 303 µg
• Vitamin A: 569 IU
• Potassium: 112 mg
• Vitamin C: 8.1 mg
• Water: 90.15 g
• Total sugars: 6.20 g
• Calories: 46 per cup

Key compounds: Lycopene, beta carotene, vitamin C (antioxidants fighting cancer/heart disease); citrulline (supports blood flow and heart health). Fat-free, cholesterol-free.

Varieties by Region

California: ‘Fiesta’, ‘Laurel’, ‘Nova’, ‘Sangria’, ‘Wonderland’. Florida: ‘Dillon’, ‘Ecstasy’, ‘Freedom’, ‘Genesis’, ‘Mohican’. Texas High Plains: ‘Allsweet’, ‘Jubilee’. Dave’s Garden members grow: ‘Raspa’, ‘Triton’, ‘Matador’, ‘Emperor’, ‘Pinata’, ‘Schochler’. Explore more in PlantFiles.

Growing Watermelons

General Needs

Long season (~3 months), warm soil, full sun. Vines spread 6–8 ft in first month. Ripe melons show yellowish ground spot, tendrils less green. Hand-pick at maturity.

Seedless Watermelons

Require a diploid (seeded) pollinizer planted alongside (e.g., ‘Sugar Baby’ or tiny distinct variety). Seedless = triploid hybrid from diploid × tetraploid cross—sterile but flowers need pollination. Honey bees essential (pollen heavy/sticky). Seed viable only one year.

Small-Space Growing

Choose compact varieties. Trellis vines; support fruit with netting or pantyhose. Works on balconies too.

Pests & Diseases

Bacterial fruit blotch (seed-borne) remains a concern; seed companies may require waivers. Striped cucumber beetles, fusarium wilt (choose resistant cultivars), deer, raccoons, crows.

Grower Tips

• Farmerdill (GA): “Patience, prepare a good spot, get out of their way! Each plant needs 30–50 sq ft.”
• Razorback04 (AR): Mound soil 5 inches high, 8 ft apart; sow 8–10 seeds, thin to 3/hill.
• FarmerRay (NJ): 4-inch raised beds, trickle irrigation, black plastic mulch. Start seedless in greenhouse for better germination.

Preparation & Recipes

Wash, cut, eat! Wedges, zig-zag halves for fruit salad baskets, melon balls, smoothies, frozen pulp for soups/drinks.

Watermelon Soup

Puree seedless pulp, add fruit juice to desired consistency, chill. Swirl thinned whipped cream on top. All ages love it.

More ideas: Pureed slush/smoothies, fruit salsa, cold soup, juice, roasted seeds, pickled/stewed/fried rind.

Sources: USDA, Nutrition Data, American Dietetic Assoc., Journal of Chromatography, Virginia Cooperative Ext. Photos © Wind 2008.