Hi, Sorry you could not find anything on our site to help you. We do have over 200 plans on this site. However, the problem here may be the maple tree. Maples are very difficult to grow under because they produce deep shade and have very shallow root systems. I have Sugar, Norway, Red, and Silver maples on my property and very few plants can survive underneath them. Without seeing a photo of the area it's impossible for me to give specific advice about what to do. Under a very mature maple you often have to resort to adding a mulch covering and using pots of shade loving annuals underneath. I might suggest you check with your local garden center or nursery and have them visit your yard for a first-hand look.