My new topiary is not thriving, help please.
Hi everyone. I am new to topiary although not new to gardening. A little over a month ago I purchased an ivy wreath shaped topiary, potted at the base. When I purchased it the leaves were dark green and vibrant. It is slowly starting to look sad. The leaves are begining to yellow a bit and it appears that it has gotten powdery mildew. Does anyone have some general guidlines for watering and sun and maybe some tipe to restore its beauty? Thanks so much in advance!