Deep indigo blue flowers much more vibrant than B. australis and a perfect plant habit are the key features of this new variety. An excellent floral display occurs in late spring to early summer. The deep blue-green foliage forms a more compact, upright mound to 3' tall at maturity. ‘Blueberry Sundae’ is a vigorous grower and the foliage looks great all summer. Ornamental seed pods extend the season of interest into fall. Baptisia is easy to grow and will thrive with little maintenance. There are many potential applications in the landscape including meadow plantings, as a backdrop in borders, or as a specimen. Plants are very long-lived once established.