Citrullus lanatus 1 gram packet about 20 seeds, sows 7 hills; 1⁄16 oz packet, packet about 40 seeds, sows 14 hills. 1 oz=about 670 seeds.
Culture: Harvesting watermelon at proper ripeness is an art. Thumping should produce a low, hollow sound. Spread thumb and forefinger and press hard on fruit. If you feel any give, watermelon is ripe. Don’t heed the traditional advice to wait for the closest tendril to brown—that may be too late. Minimum germination temperature 60°, optimal range 75–95°, optimal temperature 90°. Emergence takes 12 days at 68°, 5 days at 77°, only 17% normal seedlings at 59°, 94% at 68°.
Diseases: ANTH: Anthracnose, F: Fusarium