I know that when the coreposis starts looking shabby, I shear it off and it comes back in a few weeks. I usually will divide the plant in the Fall to make more plants. My question is when I shear the tops off of the thread leaf coreopsis called Zagreb, can I propagate the clippings by dipping them into Rootone and planting in small pots of potting mix to get them started? I would think I should keep the seedlings moist and in a shaded area until they have rooted. Does this seem possible or make sense?