With a move towards growing your own vegetables, these are a great option for anyone with limited space or perhaps if you are renting and want to be able to take them with you when you leave. They are also very cost effective and don't require building skills to put them together. If you want to create a no dig vegetable garden, layer a thick layer of newspapers in the bottom of the bed, then about 100mm of pea straw or leaves and then top up with compost. It is best to set this up in the winter months giving you time for the compost to settle. The idea is that you continue to layer compost on top. You will find some quick titivating with your hand as you replant is all the garden needs! I think I might get myself some of these!