Use toilet paper rolls to start your plants Carrots are simple to sprout in any container deep enough to accommodate the roots. Starting carrot seeds indoors is an easy way to protect seedlings and get a head start on spring planting.
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.