Butterfly Bush

Butterfly Bush

Scientific name: Buddleia davidii

Common names: Butterfly bush

Description: Butterfly bush was brought to North America from Asia, and has become a popular ornamental shrub. This deciduous woody plant grows up to 15 feet tall and is distinguishable by its long (4 to 10 inches) flower spikes that are typically purple with orange centers. Its green to blue-gray toothed leaves are long, narrow, somewhat egg-shaped, and covered in dense, fuzzy hair on the undersides.

Impact: Butterfly bush is a highly adaptable species that can grow in very little soil and withstand drought conditions. It is able to colonize frequently disturbed areas such as riversides, logged forests, burn areas, roadsides, pastures, and railroads. It can be extremely problematic in riparian areas due to its ability to form dense stands and outcompete native colonizers of disturbed riverside habitat. Butterfly bush is especially difficult to eradicate because its seeds remain viable for up to 5 years, its rootstock can sprout after the main trunk is cut, and severed branches can root and establish on their own. If you currently have or are considering planting butterfly bush on your property, please re-consider due to its invasive tendencies. If you have seen invasive butterfly bush in the county please contact our office at 503-325-4571.

Source: KingCounty.gov

For more information, please visit the Noxious Weed resources at KingCounty.gov: http://www.kingcounty.gov/services/environment/animals-and-plants/noxious-weeds/weed-identification/butterfly-bush.aspx