The Eva Solo flowerpot will improve the life of your houseplants and indoor herbs. Just a glance at the water level in the vase will let you know immediately if your plant is thirsty. The vase holds enough water to allow the plant to go a week or longer without watering. In nature, plants draw the water they need through their roots. The same principle is behind the Eva Solo flowerpot. The plant is placed in the top ceramic container, and nylon threads hang down into the glass reservoir. Water is drawn up through the threads acting as extensions of the plant's own roots.