Fill your berry containers quickly and easily with this thornless variety. Mammoth Red Raspberry produces large yields—about 1-2 quarts per plant—of very large, sweetly flavored fruits from mid-June to early July. The berries, up to 1 in. long, are highly flavored and good for fresh eating, freezing, canning, desserts, jams and jellies. The vines grow 6-8 ft. tall and require support due to the large crop of berries. Mammoth Red Raspberry plants grow best when planted in organic, well-drained, slightly acidic, sandy loam soil in full sun to partial shade. Self-pollinating. Zones 4-8.