Hydrangea popcorn is a classic variety. It misses popcorn when it blooms, so it is also called popcorn. Its color can be adjusted by the pH of the soil. If it blooms blue or purple in acidic soil environment, it will bloom pink in alkaline soil environment. Specifically, it blooms in spring and summer, with strong flowering period and easy feeding. Cold and high temperature tolerance, the flowering period is best maintained in the semi-shade, which can prolong the flowering period.