How does it work?
You fill a plant irrigator in the form of a water ball with water and you firmly stick it into the soil next to the houseplant. The irrigator then dispenses the water bit by bit. In this way plants only drink when they are thirsty and they get just enough water.

Not all plant irrigators are equally stylish. Go for water balls that are less conspicuous, such as these irrigators made of glass from Dille & Kamille. Moreover, glass looks a lot more solid than plastic.

Stay hydrated
One advantage of water globes is that they are inserted deep into the soil and water the plants from below. This allows the roots to absorb the water more easily and your plants to stay hydrated. This is especially good when the soil is often dry. There is a good chance then that the water does not go directly to the plants but is absorbed by the soil. Do give the plants plant food once in a while with an ordinary watering can to give them a boost, this will make them extra happy.