The Butterfly bush is Buddleia.
No. No.
What do Monarch butterflies feed on
Never.
no
yes
The Butterfly Bush or Buddliea does not have to be pruned for repeat flowering but to keep it compact and tidy you can prune it as hard as you like in early spring.
Buddleia is the scientific name for butterfly bushes.
No. The butterfly bush flowers, but only in the right conditions (obviously). It also depends on the type of bush.
yes you can
Summer lilac is another name for butterfly bush. The flowering plant in question (Buddleia spp) makes some gardeners think of lilac in terms of bloom colors, fragrances and shapes. Butterfly bush prevails as the more common, popular and widespread name because of attracting butterflies.
It is helpful if you add mulch to your butterfly bushes for the winter. I have lost some by not doing so. The Black Knight butterfly bush has one of the darkest blooms, nice choice.