Hi K3n, thanks for the edu- ma-cation LOL . Cant spell the other so I thought I would tell you that Geraniums (okay you just smacked my fingers (g) are the law in Spain as well, everyone has balconies full of different kinds, they do really well here and I am surprised that they like so much heat.
Its really hotting up here now. Love your garden and the ideas you have used from the French for keeping the plants shaded and the watering is a great idea. going to use that on some of my really pernickity plants.
Elle