Abstract: The present invention relates to a planting sponge, which comprises a phenolic resin body and at least one far-infrared element intermixed within the phenolic resin body. The present invention also relates to a method for manufacturing the aforesaid planting sponge, which comprises the steps of injecting materials, mixing and foaming-molding.

Abstract: The present invention relates to a dirt discharge structure, comprising: a base including a slanted plate extending inwardly from a peripheral edge of a top of the base toward a bottom of the base, an arcuate plate extending inwardly from an inner peripheral edge of the slanted plate toward the bottom of the base, and a discharging hole provided at the bottom of the arcuate plate; a barrier plate provided on the top of the base, and a plurality of the through-holes provided on the barrier plate; and a tube kit including: a first tube provided beneath the arcuate plate and connected to the discharging hole, a second tube connected to one side of the first tube, and a rotary valve connected to the first tube used for communicating with the first tube and the second tube. The present invention further comprises a container with the dirt discharge structure.