The Buzz series of butterfly bushes have been bred to maintain a short upright habit with large - up to 6 inches long - flowers with intense fragrance. 'Sky Blue' is one of our most popular, with light blue spikes where each blossom has a hint of pink in the eye. The flowers are very intense against a dark background, either deep green foliage or a dark colored wall. Large enough so that even one plant in the border is noticed, but small enough to be used in containers or narrow planting strips, the Buzz series is very versatile.