Tifblue, Powderblue, Brightwell, Briteblue and Centurion are most resistant to spring freezes. Bonita, Climax, Woodard, Beckyblue, Chaucer, Choice and Delite are not recommended for the mountains. Southern highbush cultivars, in addition to lower chilling requirements, also have greater tolerance to high summer temperatures, somewhat greater drought tolerance and develop superior fruit quality under Southern growing conditions. As a rule, Southern highbush blueberries are self-fertile. Potted plants can be transplanted in late fall.
Growth begins with bud swell in the spring and continues into late summer and fall.
The blueberry produces several flushes of rapid shoot growth. Each shoot may experience several of these growth flushes during the season, and each flush may result in 6 to 10 inches of growth with adequate moisture and nutrition. Shoot growth usually stops in midsummer. Typically, five to eight flower buds can develop on a healthy shoot. Each flower bud can produce from five to 10 flowers that continue to develop inside the bud throughout the fall and early winter months.