SmartGardens are specially designed gardens that automatically water and feed plants without the need for pumps, timers and nutrient monitoring. They incorporate a watering system called a SmartValve, which enables the plants to be gravity fed, instead of through a pump. This means there is no need for a reservoir below the garden to capture runoff. There are some more details here. SmartGardens can be placed on the ground, on racks or even on shelves.
The system is intended for growing small- to medium-sized herbs and flowers without the complexity of a recirculating hydroponic system. The SmartValve resembles that of an ebb & flow growing system by employing a simple flood and drain principle but without the need to return depleted solution back to the reservoir.
SmartGarden are available from FutureGarden. A basic kit costs $74.95.