Hi everyone, looking for some help: in our back garden (SW corner), we have a corner where there are 10 to 12 huge Cedar trees, and also a Cedar fence on the south side. Needless to say, there is hardly any light there, and it is very dry. Right now, under the trees is hard dirt and droppings from the trees. I would like to grow lots of shrubs and ground cover type things in this back corner.....any suggestions? The trees are from 3 or 4 feet apart to 10 feet apart, and some must be over 100 years old. Species native to BC (we live in Vancouver) would be best. Thanks for your help!