sfyl.ifas.ufl.edu/lawn-and-garde...ant-protection/
Winter temperatures in Florida can get low enough to damage tropical, subtropical, and even sometimes temperate plants, especially if they're not acclimated to lower temperatures.
Plants become acclimated by gradual decreases in temperature over a period of time. Sudden freezes after a period of warm weather often do more damage to plants than a freeze during a period of cold weather. Most plant parts can adapt to cold, but fruits and roots do not develop good cold tolerance. Cold injury to plants in containers is common.
Acclimatization, protection, and proper post-freeze pruning can help your plants survive a freezing spell or harsh winter season.