Gold Mound spirea is a deciduous shrub that is prized for its bright golden leaves in spring, which turn a brilliant yellow in autumn. Other shrubs may give you better flowers or more striking fall foliage, but this one excels in spring foliage. It is named for its gold leaves, of course, but also for its mound-like habit: It matures at 2 to 3 feet tall and 3 to 4 feet wide.