Ivanov_Kuznetsov

Fixing the sandy soil situation would be my first priority if you plan to be there for any length of time. Layering the soil with compost, leaves, manure, mulch, etc will build up a nice flora/fauna conducive to fixing nutrients, the going being that your added fertilizing and regular irrigation gives you much more bang for your buck. Soil amendments are free if you call around; never seen a stable charge for removal of their surplus organic material.

I've done this approach myself; I'm about half an hour east of Tampa.