Newbie question! I have a pretty old japanese maple next to my front door. I am wondering if I can plant hellebores under the maple. The tree is probably at its mature height of 15 feet with a similar spread. There is no visible roots under it and there is a heavenly bamboo and some other low growing shrub nearby. There seems to be some mushrooms growing in the vicinity as well but I don't know if this will be a problem for the hellebores. It gets filtered shade when the maple has leaves and morning sun otherwise. Thanks for any help.