Jean, nobody loves blueberries more than I do, since I come from the Pacific NW where they are widely grown and do great. They're pretty plants and delicious fruit. But they really are pretty hard to grow here in FL. The soil pH will rise due to the sand/shell components and you need to keep amending constantly to keep it acidic enough for them unless you grow them in pots. Then once you do get them growing, prepare to 'share' with every bird, squirrel and rodent for miles around. I've reluctantly concluded that it's better to let the pros grow my blueberries and strawberries. Mostly because of the 'sharing' factor - I hardly got my share ever!
As far as which varieties, there are a few that were bred specifically for Florida, including several with "Gulf" in the name. Those plus the "jewel" series - I think there's one commonly available called "Emerald". You can assume that they are at least more disease resistant than the other southern highbush varieties.
