Hi, looking for some help with this one. I am zone 8b, on the southern part of the salish sea in Washington state. It produces fruit but not many. They are a deep red when they first grow but mature to a black color. Very bitter when red (not palatable) but when black they are a bit sweet but leaves a strange tecture on the tongue. Hard to describe, almost like it dries out the tongue. The fruit has a single large pit much like a cherry just with much less flesh.