Why won't plants grow under my Holly tree?
I have a holly tree in my front garden with a boarder underneath. The canopy is about 6 feet from the ground but anything I plant underneath won't grow. The same plants grow very well in the rest of the boarder. Even when well watered the poor specimins under the tree stay sad. I was wondering if the the degrading leaves are poisonous to other plants / soil. Can anyone answer this for me?
Many Thanks, Mary