Hello all. I have 3 of these bushes at my house. Every single one of them has really bad problems with what I'm assuming is powdery mildew. So first I would like to know what I can do about it...I've pruned it back several times and they all grow very well...the leaves just get really unhealthy and it looks bad.
Also, if anyone knows what these are I'm curious.
Thanks for your help!