Patent ID: 7784217

Claim:
A plant and root fertilization system for use within a paved surface comprising: a fertilization pit for containing the roots of the plant, the pit being filled with soil and being bounded by a rectangular trench; a multipart trough positioned within the trench, the trough including a number of linear sections, corner pieces and linear joints, each of which includes upper opposing L-shaped edges that form a seat, a U-shaped body intermediate the L-shaped edges, and a series of drainage apertures formed within the u-shaped body, the corner pieces and linear joints further including opposed tabs formed within the u-shaped body, the u-shaped body of the linear sections being inserted into the tabs of the corner pieces; and a series of grate covers, each of the covers including a top textured surface and being positioned within the seat of an associated linear section, corner piece or linear joint of the multi-part trough; a particulate fertilization material positioned within the multipart trough such that when water enters the trough through the grate cover, the material is washed out of the trough through the drainage apertures and into the fertilization pit.