>Just vaguely heard of the product Subdue. Never heard of any grower in
>CA using it in conjuction with PCN's. PCN's habitat is very narrow.
>Wet cool winters (not cold) and mild dry summers. Acid soil, add
>sulpher or miracid.
Although I haven't grown any PCN's yet myself, The #1 PCN grower in our Iris
Society here in Washington says he has to constantly use Subdue to keep his
PCN's healthy. In fact I think he mentioned giving up on them because they are
so much work!
Kent, WA zone 5