Water actuated plant fertilizing device

A fertilizer container for placement on the surface of the soil in close proximity to the root system of a plant, comprising, in combination, a cup having outer walls, a porous bottom, said outer walls tapering inwardly toward said bottom, the central portion of said porous bottom portion being a raised broad upper support surface, an interior shoulder on a midsection of said outer walls, a flat substantially uniformly perforated cover plate, said cover plate having a periphery positionable on said interior shoulder and substantially conforming to said outer wall, said raised upper support surface supporting a substantial portion of said cover plate and said shoulder supporting said periphery of said cover plate thereby providing a broad support base for said cover plate and separating said cup into a lower compartment and an upper compartment, said lower compartment being substantially donut-shaped and said upper compartment being for the reception of water, whereby the water received in said upper compartment may seep uniformly into said lower compartment, where at least a portion of said fertilizer is dissolved and passes, through said porous bottom onto the soil supporting the container at a controlled rate.