Wasn't aware we have propagation forum. :)

I posted this question earlier at Peren. I think this forum is the proper place.

I have a smokebush and it's producing new branches about 18-20 inches long now. I love this plant a lot and I would like to multiply it and put it everywhere in my yard. LOL.

So what is the best proven way to propagate it?

The plant is 2 years old and about 5 ft tall. However, I am planning to cut it down to the ground next year to have a really like foliage.