Optimal conditions can vary from cultivar to cultivar, but in general, for blueberry growth there should be a chilling period of 1,000 hours below 7 °C and above 0 °C in winter for proper bud development. Summers should have warm days and cool nights, with temperatures ranging between 15 and 24 °C, facilitating flowering and fruiting. When growing blueberries in warm areas where temperatures can reach over 32–35 °C, floggers are necessary to cool plant surroundings and prevent heat damage.