I bought a clematis named Summer Sunset but I cannot find any reference to it anywhere. Has anyone heard of or grow this cultivar? It was a commercially purchased plant but unfortunately the label has faded too much to see the name of the grower that propagated it and I don't have a record of where I purchased it. The name is still on the label and it says it's a viticella hybrid but I'm not sure about that, it seems a bit large for a viticella. Here is a picture that is pretty close in colour to the actual flower.