Blueberries are handsome upright, dense, deciduous shrubs with arching shoots and elliptical leaves that emerge bronze, mature to dark green, and change to yellow or red in autumn. Tiny, white, urn-shaped flowers are followed by edible, sweet blue-black berries in mid- to late-spring. Shrubs can be used for hedges or borders. 'Emerald' is a prolific producer of very large berries with a mild sweet flavor that ripen in summer. This Southern highbush variety requires 250 chill hours. Excellent for mild winters and hot summer.