Our aptly named Devil's Lake not only has a dark navy blue coloration but also produces exceptionally lofty 39" stems and gargantuan 7" x 4" flowers. The petals have a very airy ruffle, like a storm on Neptune's inland sea. Each towering stem has four branches and produces 6-8 flowers. Here's yet another vigorous deep blue Iris with ruffles galore from our long line of champions.