There are a number of native Florida plants that can grow into a privacy hedge. Besides screening a view and increasing privacy in your garden, these plants will provide small fruit and cover for birds. The following native Florida shrubs are suggested for a 5-8 foot hedge in sunny, dry conditions:

• *Cocoplum (Chrysobalanus icaco)
• *Florida privet (Forestiera segregata)
• *Simpson’s stopper (Myricanthes fragrans)
• Walter’s Viburnum, (Viburnum obovatum)
• *White Indigoberry (Randia aculeate)
• *Yaupon Holly (Ilex vomitoria)

* Salt tolerant plant

With selective pruning, all of these plants have the potential to become small trees of 20-25 feet.
For additional information on these plants 

Cocoplum:http://hort.ufl.edu/woody/Pages/chrica/chrica.shtml
Florida privet:http://edis.ifas.ufl.edu/FP213
Simpson's stopper:http://edis.ifas.ufl.edu/pdffiles/FP/FP41800.pdf
Walter viburnum:http://hort.ifas.ufl.edu/shrubs/VIBOBOA.PDF
White indigoberry:http://edis.ifas.ufl.edu/FP497
Yaupon holly: http://edis.ifas.ufl.edu/ST311