Pick watermelon when the tendril close to the fruit turns brown. The shell will become a duller color, and it may have a pale spot where it touches the ground.
Sow seeds outdoors after the last frost date, 1/2" deep. Space 2' apart in rows. Or sow in hills spaced 4-6' apart. Thin to 3 plants per hill. Full sun.
Watermelon 'Royal Golden' (83 days)
20 seeds $3.00