White Swirl has white flowers with a yellow throat and ruffled petals. It stands 40 inches high and blooms in late season. In 1957 White Swirl was awarded Honorable Mention by the American Iris Society. In 1962 it won the Morgan Award, the highest award given to a Siberian Iris.

Siberian irises lack the beard of colored hairs at the base of each fall that other iris groups have. Typically these irises grow together in thick clumps which keep out weeds, while the thin, grass-like foliage remains a highlight throughout the summer. The classic Fleur de Lys, which has been a symbol of royalty throughout history, was an adaptation of the iris flower. The name iris was taken from the Greek goddess of the rainbow to symbolize the many colors of this flower.