Rhododendron is an evergreen shrub of Rhododendron in Ericaceae. Also known as Yingshanhong and Shan Shiliu. According to legend, there was a cuckoo in ancient times, which crowed day and night, hemoptysis, and dyed flowers all over the mountain, hence the name. Rhododendrons usually bloom in spring, with 2-6 flowers in each cluster. Corolla is funnel-shaped, with red, pink, apricot, snow blue, white and so on. , gorgeous colors. Born under sparse thickets or pine forests in mountainous areas at an altitude of 500-1200 (-2,500) meters, it is a typical indicator plant of acidic soil in south-central and southwest China.
Rhododendrons like cool, humid and sunny environments. Cold-resistant, afraid of heat, resistant to semi-shade, not resistant to long-term strong light irradiation. The optimum growth temperature is 15~28℃, and it can tolerate the low temperature of -8℃ in winter. Acidic sandy loam with fertile and loose soil and good drainage.