Almost all indoor bonsai require high humidity for healthy growth in the room. One way to achieve this is with undertray filled with gravel that is kept moist. The rising humidity reduces the evaporation of the bonsai and thus extends the watering intervals. These ceramic undertray come from Japan. Yokkaichi bonsai pot and undertray are produced with materials of consistent quality and through proven techniques. This results in high quality pots and undertray that are uniformly shaped and very cleanly glazed. Water should not be allowed to stand in the undertray as they are not 100% leak proof.
