All of those should be hardy in your growing zone 5. They will need a winter dormancy. With the exception of confusum, it will not be hardy in your growing zone. That does need a bit of down time but should do well in your greenhouse.
The others you can keep outdoors, and in the spring when you see signs that they are breaking dormancy you can divide the root mass, or take cuttings when they are actively growing again in the spring.
Is your cooperii a delosperma? If so you can try both methods for it. Greenhouse and outdoor dormancy.
I hope this was helpful?
