TL;DR
Self-watering systems deliver water (and in some setups, nutrients) to plants automatically from a reservoir. They reduce manual watering and help maintain stable moisture levels, making them a low-maintenance option for indoor and greenhouse growing.
Self-watering systems use a reservoir and a controlled feed mechanism (such as valves, wicks, or gravity-fed lines) to supply water to plants as needed. Many systems are designed to keep the root zone consistently moist without overwatering.
They are commonly used with pots, grow bags, and a range of substrates, and are popular for growers who want reliable watering with minimal daily input.
Reduced maintenance: Less manual watering once set up
Stable moisture levels: Helps avoid dry-back and inconsistent watering
Efficient water use: Reservoir-fed delivery can reduce waste
Flexible setups: Works with many pot sizes, grow bags, and substrates
Scalable options: Available for single plants through to multi-pot systems