Among the many specialty iris Henry and Evelyn grow is this white 'Immortality', rated the most popular, most reliable of the increasingly popular "reblooming" irises. "Rebloomers" are varieties that don't bloom just once then go into dormancy, but may bloom repeatedly. 'Immortality', for example, sends up multiple stalks and blossoms from midseason until fall. The plant reaches 30 inches tall and its blooms have soft white petals, a pale yellow beard, and a sweet fragrance.