A blueberry by any other name is just as sweet, especially if it is Vaccinium myrtillus, commonly called bilberry or European blueberry. Unlike American blueberries that come from hybrid cultivars, bilberries most often grow in the original, wild form which has one fruit per twig rather than clusters. You can plant bilberries in your back yard in U.S. Department of Agriculture plant hardiness zones 3 through 8, as a fruit crop or a ground cover. The bilberry prefers a cooler climate; in warmer zones, take care to keep the plant from getting too hot.