Easy and quick to grow
Butterfly bushes are popular and hardy from Zone 5 south to Zone 9. In the colder zones, they die to the ground each year like a perennial plants, but in more southern regions, they are somewhat evergreen. In the warmer states, butterfly bushes often grow to 10 or 12 ft. high, and require pruning to keep them shapely. They're happy in almost any soil and prefer moist ground, but will also do well in dryer spots. They need plenty of sun, but will be fine with some shade in the warmer areas. All this tells you that this plant is a tough one, and should be easy to grow in your garden. A well-grown specimen can be a magnificent "fountain" of flowers, since the stems with heavy flower clusters tend to arch in all directions.