That area of my yard is almost completely shaded now, it is under an enormous banyan that grows on the neighbor's wall. I cut the tree back where it hung over my yard a few years ago but I've let it grow back, I think I have to change what I grow and not try and change the environment. The wall faces north and there is a stand of timber bamboo at one end so the sun only hits the wall itself very early in the morning. I'm looking for plants that love shade to fill that area.