Tropical Hibiscus? I Just brought in my hibiscus because teps dipped to 35 degree....

I Just brought in my hibiscus because teps dipped to 35 degree. It lost alot of leaves, but still has buds on it. How do i go and get the leaves back on it. Is watering the push button. (it is in a thaw out area)
Are crocus bulbs annual bulbs?
Answers:    My hibiscus always do that too. I sit mine within front of large south facing window and continue to dampen and fertilize them over the winter. I have blooms adjectives winter long. Don't over water them but form sure to check on it regularly. The heat surrounded by the house and the direct light tend to dry them out quickly. I put my plants posterior out on the patio surrounded by the spring and they again adjust very promptly. They usually loose the existing leaves and start over. I have have the one plant for five years. Enjoy the winter blooms!
Saving potted mums for spring?
Needs lots of sun!