A kit for a planter is disclosed that has a polygon shape and has a selected number of sides and a same selected number of corners. The kit includes a selected number of bottom corner brackets, a selected number of corner beads, a selected number of top corner brackets, a selected number of top frame corner brackets, and a selected number of pairs of spacer runners that each correspond to the selected number of corners. The kit also includes a planter tub sized to fit within a planter body. The brackets and spacer runners are configured to be connected together to form a skeleton to which boards can be attached to form the planter body.