Viburnum Prunifolium - Blackhaw
Unrelated to my other viburnum questions, has anyone seen major problems with powdery mildew with this plant?
I've read that it is suseptible to powdery mildew, mainly late in the season.
I have (2) Forest Rouge Blackhaws on order and want to make sure I'm not getting an inferior plant.
I put in a whole hedge/privacy fence of Diablo Ninebarks and they all got powdery mildew. I believe they already had it at the nursery though, as I bought them before they leafed out. Now I can't get rid of it.