It all depends on the time of year and where you plant it due to the presence of microclimates in the landscape. Generally speaking, it is safe to plant fruit trees that are rated to grow in the Tampa Bay Area (i.e., Zone 8 and 9), at anytime. This assumes you are able to keep the root ball hydrated during establishment and can protect the plant from extreme hot and cold conditions. If you cannot tend that closely to the plant, then your best bet is to plant during Feb to April and August to Early October. http://floridayards.org/fyplants/index.php
Spring and summer
Right after winter/ very early spring
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