Planting flat

Claim 1

A planting flat comprising a unitary body of sheet material having a plurality of downwardly tapering cells of a common vertical length having open upper ends and closed lower ends disposed in respective upper and lower substantially parallel planes, an upper panel interconnecting the upper ends of said cells into rows that are of substantially parallel adjacent relationship, each unitary cell having a transversely substantially square upper portion defined by vertically substantially parallel, right angularly related pairs of oppositely disposed walls, and having substantially frusto-conical unitary central and lower portions continuous with the walls of said upper portion and tapering uniformly downwardly along a common longitudinal axis from the upper square portion to a closed lower end, the central portion being defined by a plurality of unitary longitudinally extending concave reinforcing ribs extending downwardly from each corner of said square upper portion to said lower portion to enhance the rigidity of said central portion, said ribs extending radially beyond the taper of said central portion and defining openings at their lower ends spaced outwardly from the remaining tapered lower portion whereby excess water can drain from said cell, said openings being upwardly spaced in relation to said lower portion of the cell, the tapered lower portion below the openings being inperforate to define a reservoir therein.