Azaleas may be evergreen, keeping their leaves all year long, or deciduous, dropping their leaves in the fall. The green leaves on some evergreen azaleas, like 'Delaware Valley White,' may become yellow in winter. Some deciduous azaleas, including 'Umpqua Queen,' also experience foliage color changes in the fall.
About this Author
A freelance writer, Judy Wolfe has owned Prose for the Pros, a freelance writing business, since 2006. She's been an inveterate traveler since 1961 and draws on her travel experiences to provide articles for such websites as Chincoteague Island Vacations and Berlin Dude. Wolfe holds a Bachelor of Arts in literature from California State University at Pomona.