PlantFiles: Northern Highbush Blueberry
Vaccinium corymbosum 'Blue Ray'

these attractive shrubs are attractive while in flower and fruit and they have brilliant autumn foliage which becomes orange, scarlet and red! they need acid soil with a high content of organic material to maintain moisture. this can be easily accomplished by adding sand and peat moss to the soil. a constant but moderate moisture supply throughout the growing season in necessary while over water for long periods is a no-no. i recommend using a liquid Azalea and Rhododendron plant food which can normally be purchased through your plant dealer or wal-mart :) all-in-all this is a marvelous plant to grow and i highly recommend it. The quarter size fruit that the blueray produces is extravagent!!!

According to brackengardens.com:

Introduced from the New Jersey Agricultural Experiment Station in 1955, this variety is an old favorite. Highbush; early midseason with small, tight clusters of large, medium blue fruit. The soft, firm skin of Blueray resists cracking. Excellent quality berries with a sweet, slightly tart, aromatic flavor. Vigorous and very productive, this bush will grow 4-6 feet tall at maturity. Bright red wood in the winter.