Find an elevated planting site that gets full sun for at least eight hours a day and quick, complete drainage. Although blueberries will grow in partial sun, they will not bear a large fruit harvest there.
Amend the soil for the blueberries before planting. Mix equal parts quick-draining soil and organic matter such as sawdust, peat moss or wood bark into the top 6 to 8 inches of the soil. Blackberries require highly acidic soil and won't grow without the proper mix of organic material. Mix the soil completely to avoid planting the blueberries directly in the organic material.
Put Legacy blueberries out in early spring, after the first thaw, for summer establishment and growth. Plant the bushes in 4-inch holes, with 5 feet of room per plant. Space rows at 10 feet for ideal air circulation and sun exposure.
Provide Legacy blueberries 2 inches of water, then feed the bushes with a dose of 10-10-10 or ammonium sulfate fertilizer. Apply 2 lbs. of fertilizer per 100 feet of planting. Spread 4 inches of sawdust, mulch or wood chips over the soil around the bases of the plants to maintain soil moisture and warmth. The mulch will add additional acidity and nutrition to the soil as it breaks down.
Maintain Legacy blueberries with at least 2 inches of water a week. Feed the blueberries again one month after planting with the 10-10-10 fertilizer.