At last count, Martyn Cox had more than 250 different plants growing in his 600-square-foot garden in London. He knows from experience that you don't need a lot of space to have an exuberant garden. Big Gardens in Small Spaces provides boundless inspiration and ingeniously practical solutions for taking advantage of every square inch of a small space -- including gardening in shady corners, on rooftops, around doorways, and in the cracks of pavement...