We are a nation of gardeners, and we take pleasure in tending our backyards. But this pleasure sits uneasily with our knowledge that the places where most of us live are running out of water. We suspect that our lawns and many of our plants from the damp climates of northern European gardens are too demanding of scarce supplies, but can't imagine our streets and gardens without them. The Old Country opens our eyes, and minds, to other possibilities. It does so by telling us stories about our natural landscape. George Seddon believes that the better we understand the delicacy and beauty of our...