Hardiness zone map
from the USDA

Closeup of the Treasure Coast area
9B & 10A
Treasure Coast

Florida Chill Hours map
Some trees require a certain number of chill hours in order to flower and set fruit.
A chill hour is 1 hour over winter with temperatures between 32° & 45°F.
Many northern fruit cannot be grown here, although if a fruit is especially popular, someone will try to develop cultivars with lower chill requirements.
Successful examples are low-chill apples and peaches.
Not yet (in TC): apricot, kiwi, cherry.