Potted Hibiscus Plant
My mom's potted hibiscus tree hasn't shown any signs of blooming since the winter months. The plant was kept out of the cold during these months.
Certified GKH Gardening Expert
It may need some pruning. Here is an article that you may find helpful: https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/tips-for-pruning-hibiscus-plants-when-to-prune-hibiscus.htm