Both of those plants can go in the ground right now.
You could take a cutting but it's not easy. You would really be better off buying an established plant or digging up one of the babies from the lilac or rose of Sharon.
Here's some basics for taking cuttings. I like taking cuttings, but each plant is a little different and hardwood cuttings are the toughest to make root, at least for me.
http://www.backyardgardener.com/jmoore/Cuttings.html