The Dry Garden: The Frenchman’s guide to (not) watering

COFFEE table books on gardening are generally so useless that it has been tempting to ask publishers to send review copies straight to the dump. Yet when Joan DeFato, retired librarian of the Los Angeles County Arboretum & Botanic Garden, came to lunch bearing a big specimen that was not so much glossy as positively lacquered, I sat down and read it. Disbelief mounted with every turn of the page of the Thames & Hudson offering, “The Dry Gardening Handbook: Plants and Practices for a Changing Climate.”

This was a beauty queen with brains.

The author is nurseryman Olivier Filippi. A Frenchman, Filippi betrays an understandable fondness for the dry plants of his native garrigue, the French version of our chaparral. His writing is most poetic when touching on the “thick and sticky smell” of rockroses and the like. Yet as he pushes out beyond the south of France and…