The House Plant Observatory It is not uncommon to encounter indoor plants in a miserable state. Therefore, the House Plant Observatory was devised, enabling a thorough monitoring of the organism's wellbeing. It is equipped with a soil thermometer, two magnifying glasses and a dropping glass for adding water, fertilizer or other necessary substances. The pot the plant is growing in, has a small window that facilitates soil and root inspection. If desired, a special plant light can be added to the setup,.