What kind of garden style fits your region and your vision? Mine is a Fusion Garden Style (some would say ConFusion Garden style!). Here are three books from my garden library that beautifully illustrate Mexican Garden Styles. My tropical garden most closely fits the gardens in the Vera Cruz and Tampico areas. My favorite is Las Pozas in Xilitla...a jungle garden par excellence.
And.....if you have any other books on this topic, please leave a comment. I'm always on the lookout for gardening books.