I am sorry for this delayed reply to your gardening question. We are transitioning to a new Q&A system and your question was unfortunately lost in the transition. I have discovered it now and hope this reply is not too late to be of help.
Everything you are describing is normal. The plants bloom best in spring to early summer depending on the specific variety. Your plants may not bloom well next year after the transplanting, but it may...they are sometimes picky that way.
Water enough to keep the soil slightly moist but not soggy wet. In a container that may be a little more often than if there were planted in the soil. But just how often depends on the container size, amount of sun exposure, temperatures, etc.
Don't cut them back any more. They can be cut back a little in late winter to remove brown topgrowth.
Thanks for the question. Please stop in again soon!
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