Hydrangeas are popular flowering plants known for their large, colorful blooms. They belong to the family Hydrangeaceae and can be found in various colors, including blue, pink, white, and purple. The color of the flowers often depends on the soil's pH level, with acidic soils producing blue flowers and alkaline soils resulting in pink ones. These plants thrive in temperate climates and prefer partial shade and well-drained soil. Hydrangeas can be grown as shrubs or small trees and are commonly used in gardens and landscapes for their striking appearance. They typically bloom in late spring to early summer.