Blueberries thrive when they are planted in full sun in acidic, well-drained soil and given a thick layer of mulch and adequate water. The best time to plant blueberries is early spring. They do best when spaced 4 to 5 feet apart in a group.
Planting more than one variety of blueberry allows the plants to cross-pollinate and leads to larger berries. It also leads to a longer harvest season if the plants ripen at different times. For best results, pinch back the blossoms for the first couple of years. This prevents the plant from forming fruit and stimulates growth.
Blueberry roots grow near the surface of the soil, so they need more water than other fruit-bearing plants. Young plants need about 1 inch of water per week during the growing season, and older plants need between 1 1/2 and 3 inches per week. Deep watering at the base of the plant targets the roots and prevents diseases.
Blueberry plants do not need pruning during the first few years. After three or four years, prune them in mid-winter when the plants are dormant to remove old stems and weak branches. Pruning ensures larger berries and strong growth. Plastic netting over the plants prevents birds from stealing the berries.