I couldn't find seeds for two of the flowers I love most, Lantana and Scaevela (fan flower), so I am trying to grow it from cuttings. Both of these plants are tender perennials.

My question is, if and when the roots grow. I repot the plants and then what do I do over the winter. Do I cut it down and put it in my basement or in a garage, where it is protected but gets colder. Do I take it back out in the early spring or does the temp need to stay above a certain temp?