Hydrangea is a national protected plant.

Needle hydrangea is a national second-class protected plant. According to the relevant provisions of the Wildlife Protection Law of People's Republic of China (PRC) and the Plant Protection Law of People's Republic of China (PRC), hydrangea is an endemic plant in China and is listed as a national second-class protected plant. The state divides wild animals and plants into primary protection, secondary protection and tertiary protection. Second-class protected plants refer to plants that are limited in distribution, few in number or disturbed by human activities in China, and belong to protected rare plants.