(Butterfly Bush) An explosion of fragrant purple-blue flowers flow outward and downward from midsummer to frost on Lo & Behold Buddleia x Purple HazePPAF. This dwarf variety has a horizontal, low spreading, non invasive habit excellent for use as a ground covering plant. Purple HazePPAF was developed by Dr. Dennis Werner of NC State University and will attract butterflies and hummingbirds. A Proven Winners ColorChoice Flowering Shrub.