Rooftop Planting

Trees whose trunks and branches will continue to grow and thicken out over many years. Evergreen trees which keep their leaves all year and deciduous trees which lose their leaves in winter, trees are an element of the structure of the planting framework, and please the eye with a change that is different from that of grasses and flowers.
Also, in keeping with the theme of “aside from the grass, everything is edible”, in spring you can pick Japanese bayberry, in summer raspberries and blueberries, in autumn chestnuts, pomegranates and Japanese silverberry, and in winter plums.