The Knowlton Medalis the highest special medal awarded by the American Iris Society to border bearded (BB) irises. The candidates are the BBs that have received the Award of Merit in the previous three years. 2, 3, or 4 years ago. The winners of the medal are then among those eligible for the American Dykes Medal the following three years.
Here are the four candidate BB irises on the 2015 ballot.
-- WayneMesser - 2015-01-28