The Polanter Kit 4 - x The Polanter is a vertical and modular planting system with an internal integral watering facility. Its modular design feature is easy to assemble and can be built into a variety of lengths to suit your personal require
Here is an idea for a vertical garden in a classroom (plus a fish tank). This could also work in other places -- homes, places of worship, community centres, etc. Maybe even outdoors? With a mesh covering over the fish tank, the cats couldn't get in.