I vote for a bee pod. I have had an established clump in a location far away from other irises that has bloomed faithfully for 16 years. Then on the 17 year it was putting on its show of pale yellow standards and rosy falls when one of the stalks erupted into a purple iris bloom. It had to be a seed that germinated and just managed to grow without any care until it matured and bloomed. I figured if it was that hardy I should get it out of the old clump so it would not run over the original iris planted there.
