Is there a 'preferred' color of Butterfly Bush?
What has been your experience if you have multiple colors of BB in your yard? Do the BFs flock to one over the others, or do they care?
If there were only one choice, would they not be particular?
Lights? (Carib. Crush comes to mind)
Darks? (Blue or Purple)
Color Specific- Blue, Purple, Pink, Yellow, Magenta (oh, that Queen's Robe is gorgeous!)