u The base of the plant holder has an opening that is sealed with a water permeable material such as gauze or wool and which has granulates found in the inside of the heart. The inside of the heart may be glazed and be water impermeable. The upper third of the heart may have a predetermined breaking that prevents opening of a fissure in the lower section of the heart. The predetermined breaking point may have an expansion of around 5 millimetres horizontal to the inside of the heart. The walls of the heart may be thickened around the upper part of the predetermined breaking point
