Alma, I am sorry I missed your question...I got on a rant over my coleus failure.
I usually do so well.
ALWAYS pinch off the flowers. And I root in potting soil in the shade for a week and then move to morning sun for a week. After 2 weeks they are usually strong for more sun. The cuttings may look funky for a few days but keep them watered. Rooting in water works but sometimes they rot that way. I prefer a little rooting compound but I often root without it.
Yes, Alma, it does make them bush out more but pinching back. I cut mine back in late winter and they are gorgeously full again in a short time.
Did I answer everything?