Tropicals & Tender Perennials: Overwintering, sigh, 0 by Hibiscus

Hibiscus wrote:
I put most of my big ones in the basement, under florescent lights. Basement stays 62 degrees all winter long. I only cut back what I have to so as to carry them downstairs. If you don't cut them back, they have a better chance of blooming the next summer outside.

Keep them on the dry side all winter, just enough to keep root system from drying out too much, water about once a month or as needed, don't overwater.

This was in December in basement.