Consisting of a growing bed, potting soil, water reservoir, and wicking system that puts the soil in contact with the water, self-watering pots work through capillary action, or wicking. As the plant roots absorb water, the soil wicks up more, maintaining a consistent level of moisture in the soil.

Do self-watering pots really work?

Yes! Self-watering planters are a fantastic solution for most indoor plants, especially tropical plants, vegetables, annuals, and perennials. Houseplants that like moist soil probably do not need a self-watering planter though, as it's hard to maintain the degree of necessary soil moisture.

How often do you fill self-watering pots?

All you need to do to keep them running smoothly is refill their water chamber when it runs low. The number of times you'll need to do so will depend on the type of plant, sunlight levels, and time of year, but it'll usually be every three weeks or so.