Blackberry Care
Select a sunny location with good drainage. Water regularly and deeply for the first year, especially during dry periods. Fertilize with an all purpose fertilizer before the plant comes out of dormancy in the spring. Adding mulch annually to reduces weeds and preserves moisture. If needed, use an insecticidal soap during the growing season to control insect pests. Thin blackberry canes in winter by one third, removing the oldest canes and any dead wood each year.