And admittedly, a very naive one.

My house came with one of those Japenese snowball viburnums (viburnum opulus "roseum" I guess - the sterile kind).

I have room for one and only one more shrub and I want to plant a viburnum, but of course it needs a compadre in order to set fruit. That I know.

What I don't know is whether or not this sterile viburnum will actually pollinate another viburnum. I guess I don't know what it means to be sterile in the botanical sense. Does it mean it just can't produce berries for some reason?...or that it doesn't even produce pollen? (therefore making it completely useless).

I'm a little confused from what I've read so far, so maybe someone can set me straight once and for all?