This upright growing cultivar of unidentified parentage is from
Dr. Doug Beilstein of Ohio and was registered by
Mark Zilis of Illinois in 2010. It is a large size plant about 21 inches high by
38 inches wide with dark green foliage that is heavily
streaked. The leaves are elliptic to ovate, slightly
cupped and slightly wavy. Its tubular flowers blooms
from mid-July into August. 'Prairie Rainbow' changes to
dark green and white as the season progresses.