Buttonbush is a very interesting shrub, popular with collectors. Its main feature are fluffy showy flowers that are perfect spheres with tiny, pure white, tubular flowers, which have an irresistible scent that attract butterflies and honey bees.
Buttonbush usually grows to about 6 feet or less, although it can grow up to about 15 feet. The glossy leaves of this plant are opposite (sometimes whorled), and ovate to elliptical (3-5 inches long and 1-3 inches wide. Can be trained into a stunning mini tree or container topiary.
Buttonbush requires very moist or even wet soil. It should be humus rich, neutral to acidic. Fully hardy to min. -20 F (USDA zone 5), possibly more.