Magic Carpet spirea grows best in a location with full to partial sun and well-drained soil, according to Easy Bloom. The plant requires water and fertilization on a regular basis, in order to keep the soil moist. Once a branch has flowered, cut it back to its stronger lower shoots to increase the plant's fullness. Trim back old shoots to the plant's base in early spring to promote new growth.
Magic Carpet spirea is a dwarf-plant compared to other spirea varieties. The plant grows as high as 18 to 24 inches tall and 2 feet wide. It is hardy in U.S. Department of Agriculture zones 4a to 7b, according to Easy Bloom. It flowers from early spring to late summer, and its long lifespan spans up to 20 years.
The plant sheds its leaves in August. Though it only flowers in the spring and summer, the plant retains color well into the fall. The rose-pink flower clusters are accentuated by new, bright red shoots. These are mixed with older, bright gold foliage.
Paghat's Garden notes that the Magic Carpet spirea was bred by David Tristramand at Walberton Nursery in West Sussex. The plant has won the Award of Garden Merit. It is officially registered and often marketed as Walbuma, which is the trademark name of Magic Carpet spirea.