Investigation and Analysis on ColdInjury of Garden Plants in Hangzhou

From January 23rd to 25th in 2016, Hangzhou of Zhejiang province experienced three consecutive days ofthe lowest temperature -8-9℃,and many garden plants were suffered varying degrees of cold injuries. Investigations were carried out on garden plants at Hangzhou BotanicalGarden, parks in the West Lake scenic area, part of streets and residential areas in middle February 2016 and late April to late May of the same year.The results showed that 41 species of 34 genera and 19 families were injured by the cold weather, among them, 83% were introduced species. About66% species were injured slight or moderate, and recovered by pruning or even without any operation. 27% species were severely damaged, and theirgrowth turned weaker obviously.7% species were died. Suggestions were put forward for better growth of garden plants such as less introduction,more domestication and much more local species for distribution and better management.