Buddleia Davidii 'Buzz Midnight' (Butterfly Bush)Highly fragrant flowers attract butterflies and hummingbirds in the garden! Blooms from Summer to Autumn. This sterile cultivar has beautiful dark purple flowers and is not considered invasive. Prune back a third of the plant in the late winter or spring after all chances of frost have passed. Highly fragrant flowers attract butterflies and hummingbirds in the garden! Butterfly Bush Size: 1 gal. May be deer resistant in some areas Sun Shade: Full Sun