There are two distinct kinds of spireas: the bridal wreath type, with clusters of white flowers cascading down arching branches in spring or early summer; and the shrubby type, with pink, red, or white flowers clustered at branch ends in summer to fall. Blossoms on both types are usually single.
Native to Japan and China. Upright, shrubby spirea to 4–6 ft. tall and wide, with flat, 8-in.-wide clusters of pink flowers carried above oval, sharply toothed green leaves. Best known through its selections, which are typically lower than the species and bloom between summer and fall in shades of pink, red, purplish pink, and sometimes white. Some have colorful new growth. They include plants formerly classified as hybrids of S. x bumalda, itself now considered merely a variety. It grows to 3 ft. tall and wide with dark pink flowers and bronze-tinted new growth.
Other popular varieties include ‘Anthony Waterer’, 3–5 ft. tall and wide with carmine-pink blossoms and reddish purple new growth that matures to bright green; ‘Goldflame’, 2 1/2 ft. tall and wide with pink flowers and bronze new growth that matures to yellowish green then turns dark reddish orange in fall; ‘Little Princess’, 3 ft. tall and 6 ft. wide, with rose-pink blossoms; and ‘Magic Carpet’, 1 1/2–2 1/2 ft. tall and with slightly wider, pink flowers and reddish bronze new leaves that turn chartreuse to yellow as they mature.
Velvety crimson flowers. Leathery leaves on 10-ft. stems make this suitable as a flowering groundcover...
This longtime favorite sports purple-blue flowers with lighter bars.
Vivid magenta-red flowers on fast-growing stems up to 12 ft. long.