I used to live in Kentucky where the winters were bleak and frequently icy. Nothing bloomed during the coldest weeks. Upon moving to Florida, I found there were three Camellias planted by the house. After seeing them bloom, I added several more.
I have two "tribes" of Camellias. The two Sasanqua Camellias I have start blooming in late October and bloom into December. The Japonica Camellias start blooming about the time the Sasanquas are finishing. The Japonica Camellias bloom into early spring.
This year, the Japonica Camellias were disrupted by some brutal [by Florida standards] cold snaps, but have since started blooming again. Tonight we freeze again darnit. The blooms shown above are all Japonica Camellias.