Black Diamond watermelon features nearly round fruits weighing up to 40 lbs. Bright red, firm, sweet flesh. Very dark green and thick rind makes for good shipping. 90 days.
Standard varieties have seeds and are diploid. Sow seeds directly into packs, peat pots or directly in the field. 3-4 lbs. per acre. Well drained soil is best, plants need adequate water from seeding until they start blooming.
300 seeds/oz.; 8 days, 70-72°F.