A container assembly for irrigation of plants comprising: an outer container； an inner container receiving in the outer container, so that an inner container rim and an outer container rim are adjacent； a recess defined between the inner container and the outer container； an internal hose received in the recess, having a portion extending out of the outer container and attached to a subsurface irrigation system, supplying water between 30 psi and 50 psi, to the internal hose； and, a water control cap attached to the internal hose having an output control for controlling the amount of water delivered to an internal area of the inner container.
