A planter includes a concave container and a separate rim, both formed from a thermoplastic material. The container has a brim extending radially outward from an upper portion of the container. A vertical wall extends upward from the brim and has exterior flanges and grooves formed on its outer surface. The rim has a top wall with outer and inner side walls extending downward from its edges. Interior flanges and grooves formed on the inner surface of the outer rim wall are configured to engage the exterior flanges and grooves on the outer surface of the container vertical wall such that the rim can be secured onto the upper end of the container. The upper surface of the brim of the container comprises a stop inward of the vertical wall such that when the rim is advanced onto the upper end of the container, a lower portion of the inner rim wall confronts the stop to inhibit further advancement.