Packed with nutrition and a sweet, juicy flavor, blackberries are some of the most rewarding brambles to grow in home gardens. Our cultivated blackberry varieties for sale produce larger, sweet fruits than most wild blackberry varieties. Gardeners can also choose thornless blackberries for easy picking. Blackberry canes are usually grown near a trellis or fence for support. When selecting the best blackberry bushes to buy online, determine if they will grow in your hardiness zone. Most blackberry varieties grow in zones 5-9, but some are better suited for warmer climates. All blackberry plants grow best and produce the most fruit in full sun, or six or more hours of direct sunlight daily.