Plenty of sunshine, regular irrigation, and rich loamy soil will give plants the energy and nutrients they need to yield sweet, jumbo blackberries. Plants should be spaced 5 to 6 feet apart; if planting in rows, space the rows 5 to 8 feet apart. If necessary, amend the soil before planting so it is rich, well-drained, and slightly acidic. Blackberries should be planted relatively shallow—about 1 inch deeper than they were growing in the nursery pot. Trailing varieties of blackberries should have a trellis or other form of support to secure the canes.
These are thornless and need to be planted in full sun.