I'm far from the mediterranian area but my soil us mostly clay ..deep clay, with a nice topsoil over it..and then there are strips of pure white sand that run through it above the clay here and there..so it is similar to yours other than the climate.
if you would like to check out my blog below, there are lists of plants that I grow here ..but I'm zone 4/5 rather than your warmer climate..so I'm not sure how much help it will be for you
Bloom where you are planted.
posted 8 years ago
Thank you for your reactions. It surely is helpful to me.