Not saying it is, but it does look remarkably like Weigela middendorffianum. Cuttings of non flowering shoots whenever you choose.

Really, Owdboggy? I'd have thought it would be a rhodo/ azalea.

Had another look and you are right. My eyesight is not what it was. Wish people would do a close up of the flower and a leaf and give you indication of scale. It would make life a lot easier.

I believe the best way to propogate this is by layering. Take a shoot near the ground and wound the underside of the bark. Bury the wounded piece slightly and place something like a small rock to keep it in place. It will take two years before the layer will root and can be separated from the mother plant