In winter a Camellia is the preferred flower in the tearoom. It blooms from October through April. Each flower may last for several days but only the bud is used with a deciduous branch from a shrub or tree such as Viburnam or Fothergilla.
– excerpt A Tea Garden in Tivoli

Camellias are native to China and Japan. They grow well in moist mild winter areas.
Here in Zone 5, I overwinter potted Camellias in a cold room of my house

This Camellia is called Shiro Wabisuke which I ordered
from Nuccio”s Nurseries
www.nucciosnurseries.com
It will have small, single white blossoms.
There are over 250 species of Camellias. The most widely grown are the Camellia Japonica. In the United States , Camellias grow well in moist, mild winter areas like the South, California, and the Pacific Northwest.