Blueberries and raspberries can be grown in close range to each other and have a productive harvest, but it is important to plant them correctly because they can be tricky together. Take into consideration each berry plant's different growth habits and requirements, such as fertilizer and pruning needs, to grow them successfully.
Pick a planting site a minimum of 7 feet from the raspberry plant for your blueberry plant, with proper sunlight requirements. Do not add manure to the planting site as you would raspberries, as blueberries are not used to alkaline soil and manure is alkaline.
Dig a large and deep enough hole in the ground for blueberry transplant's root ball, with an additional 6 inches in diameter. When planting blueberry transplants, spread out the roots with your hands gently and set the transplant into the hole. This will ensure the roots don't get cramped and will let them spread out naturally.
Mulch around the base of the blueberry plant to retain water near the roots. Blueberry plants need this because the transplants will need more water as they establish. Water right after planting, and after that, water enough to keep the soil moist but not soaked.
Keep the acidic content in the blueberry soil high with aluminum sulfate and peat moss. Raspberry plants do not need this additional amendment, so it is common for the raspberries to grow faster than usual. Because of this, prune the raspberry bushes more regularly than the blueberries so they don't overpower the blueberry plant.