hi i am quite new to gardening i live in wales and part of the garden dosnt get much light.its east facing with a large house next to it(south).Anyway i was wondering what a moon garden was and would i be able to make one in my garden as its in the shade all day i just dont know what to put there.At the moment there are some hostas and a holly tree there but it looks real empty.Could do with some help here. Any suggestions please?