To help control weeds in garden beds between my plants I have put newspapers down on the ground and added a layer of mulch over this.
I have also done this where there are trees in the garden beds (an Autumn Blaze maple and a Japanese Lilac).
I am wondering if it was a good idea after all when it comes to the trees.
As well as making fertilizing more difficult, I'm afraid that the additional layer of newspaper will prevent some water and nutrients from going into the ground and may restrict oxygen going down to the roots.
Should I remove the newspaper layer? Could it be detrimental to the trees?