-
Bob

Here in Z6 CT a screen of P.bissetti, P. decora , and P. aureosulcata
does well all winter. The leaves will winterburn if you have
prolonged dry cold winds.
Mixing a few species keeps you from losing the screen should one
flower.

Thanks. Do the forms blend well? Decora seems more upright to me that the
other two. Maybe if I saw them together, they would be nearly
indistinguishable.

bissetti tends to arch over, where that is undesirable I pass a rope
around a section of the grove. Otherwise they blend well.