A tree frame and grate system and growing method for the purposes of encouraging healthy and abundant root growth and permitting optimal development and growth of a tree or other plant material within an urban or otherwise primarily paved environment. The system is comprised of a preformed supporting frame to contain an engineered growing media and plant material. The engineered media, which may extend beyond the exterior of the supporting frame, is designed to promote healthy growth of the plant material, and resist compaction from overlying pavement. The frame may also support a manufactured grate or other partial enclosure. The system may be adapted for electrical service connection for aesthetic lighting, and piping to provide supplement irrigation.