Blueberry Bliss | Blue Iris -First, take the frothy navy blue coloration of fresh blueberry. Add the crisp form of huge 4" x 6 1/2" flowers along with a dash of juicy ruffling. Make sure the stems are tall with three to four branches and produce an average of 8-10 buds each. Voila! You'll have it-Blueberry Bliss. A happy treat early in the bloom season.