Answer: Camellias are hardy and need flower protection only when the temperatures drop below freezing. Even then only the opening buds showing color are likely to be damaged. After the cold, the tight buds should continue growth and flower. Plantings are either early, mid-or late-season bloomers.
Beijing Population 2017. The current population of Beijing according to the 2010 census, as reported by the official Chinese Government statistics agency, was 19,612,368. The population at the beginning of 2016, according to some estimates, is 21.7 million.
The Evolving Urban Form: Beijing. by Wendell Cox 08/29/2011. China's capital, Beijing, has long been one of the world's largest urban areas. Some reports placed its population at over 1 million in 1800, which would have made Beijing the largest urban area in the world at that time.