No space no worries

A few years ago my brother dropped off a couple pieces of guttering so I could use them as strip gardens for greens or strawberries. I have finally got them full of dirt.
One side has Cherry belle radish the other globe beetroot, we use the leaf in salad as well as the root so 2 ingredients for the price of one.. This is an ideal space saver. I have it set up in the driveway over the drainage.  You could also use Styrofoam boxes anything that has drainage and holds dirt. Plant things with small root masses and quick maturity, radish, greens and herbs are ideal.