We generally dont recommend butterfly bush due to their invasive nature but the pugster series is not completely sterile but also not invasive. Enjoy the large abundent flowers on this compact plant. Truely only grows to 24".

From Proven Winners:

Full sized flowers on a dwarf plant!

Meet Pugster Blue® - it's a whole new look for butterfly bush. This compact plant reaches just 2'/.6 m tall and wide but has the large, full flowers normally seen on a much larger plant. It blooms non-stop from early summer through frost with true-blue flowers, each with a tiny yellow-orange eye in the center. Thanks to thick, sturdy stems, the Pugster® series offers vastly improved hardiness and winter survival over other types of dwarf butterfly bush.

Pugster Blue butterfly bush is featured in our "Pied Piper" magazine advertisement.

Top three reasons to grow Pugster Blue® butterfly bush:
1. Appealing true-blue flowers add hard-to-find color to any type of garden or landscape.
2. It produces full-sized flowers on a compact, dwarf frame.
3. Thick, sturdy stems ensure better winter hardiness in zone 5 than other dwarf butterfly bush.
Best Seller
Fragrant Flower
Continuous Bloom or Rebloomer
Long Blooming
Deadheading Not Necessary
Drought Tolerant
Attracts:
Bees
Butterflies
Hummingbirds
Resists:
Deer
Rabbits
18-24" high