Hi Ian,
I have only just spotted this topic ... my thanks to Maggi for replying so quickly.
The Gargano would be, without the litter and illegal dumping, a paradise for flower enthusiasts. We found so many species and a host of differing habitats during our seven day break in March.
We stayed in Vieste at the end of the promontory and the town (and the peninsula) was still in hibernation, many hotels, shops and restaurants were shut, but on the plus side the roads were incredibly quiet and we had the flowers and scenery to ourselves.
You will enjoy your visit if you can ignore the ever increasing piles of garbage and trash ... unfortunately we couldn't!!!
Should you require further information or advice then please feel free to contact me privately.
If anyone from the Gargano tourist office or from the local government is reading this then PLEASE save your National Park before the illegal tippers destroy it completely. You are the custodians of an unbelievably beautiful area.