(1 Gallon) JUMBO Muscadine Grape Vine, Black fruits are very large in size. One of the largest Black Muscadines. High yields, good flavor. (1 Gallon) JUMBO Muscadine Grape Vine, Black fruits are very large in size. One of the largest Black Muscadines. High yields, good flavor. Black fruit are very large in size, high yields, good flavor. One of the largest black muscadines. Plants are very vigorous and have very good disease resistance. Hardy in zone 7-10, Female grape needs a self fertile grape variety to pollinate it. Sugar Content 15%-16%. Uses: Wine, Home, Fresh Market, Juice, and Jelly.