Buddleia davidii 'Black Knight' ~ Butterfly Bush
It is easy to see why Buddleias are commonly call Butterfly Bush. Butterflies swamp to the spikes of fragrant blooms. Buddleia "Black Knight" produces loads of dark purple blue flowers. Attracts bees, hummingbirds and butterflies.
The plant offer is similar to the plant in the photo about 4" or more tall from the soil line.