I wanted to know if it is possible to propagate California Lilac (Ceanothus grisius horizontalis) from cuttings. And if so, can someone direct me where to go or give me advice on how to do it. We have quite a bit of it that is growing very well on our property in Ramona, CA and it needs to be trimmed back and I hate to just throw away the cuttings if I can keep them and make more plants.

Thanks in advance!