how long does it take watermelon to produce
These require a slightly longer growing season, usually 80 to 85 days to fruit harvest. Blooms may appear anytime in a four- to eight-week period. Seedless Types. Seedless watermelon varieties (all are triploid hybrids), also require 80 to 85 days until fruit harvest from time of planting. These will flower within the same four- to eight-week window as main season types.