There's a plant clinic on the 1st Monday of the month at Truman Rec Center, run by Master Gardeners, I think. You can bring problem plant pieces and probably questions. I haven't been yet, but have it on my calendar for November, our 1st full month down here.
You can also google Sumter County Extension service (or whichever you live in probably) for other programs. Occasionally there's a special seminar - I went to one in June at SeaBreeze.
Also try this link
http://floridayards.org/
But be careful - I put in Central Florida for palms and it still gave me ones that are not hardy in this zone - check the page carefully.