|'Carolina Cross' is generally ready for harvest 100 days after sowing. These melons weigh up to 100 pounds, and are 20 inches in diameter or more. The rind is light green with dark green longitudinal striping, and the flesh is salmon-colored and sweet. Does best if started early indoors and transplanted out Watermelons generally do best in warm climates. Cool weather will not produce good fruits, but some of the adversity of cool weather can be overcome by starting seeds early indoors, and transplanting them out at the height of summer. Plastic groundcovers are highly recommended to increase soil temperature in the spring, and rowcovers will help the crop ripen in the fall.