The advantage of putting them in with the hibiscus is they would continue to grow and bloom all winter. In the spring, I would be planting bigger plants. Here, tropical hibiscus left outdoors are deader than dead by the end of October. THat window must stay above 40 all winter.
OTOH I've lost most roses I've planted in the fall, but then I didn't mulch correctly either. The soil is still pretty warm.
So you're thinking outdoors is better?
