Present in Utah through nursery trade. Illegal to sell or propagate. Prevent further distribution.
Quick Facts
Report your sighting through EDDMapS to help us track and respond to new infestations.
Report on EDDMapSDame's Rocket
Hesperis matronalis
Overview
Dame's rocket is a biennial or short-lived perennial from Eurasia that was widely sold as an ornamental wildflower. It is now illegal to sell in Utah. It invades roadsides, forest edges, and disturbed areas, displacing native wildflowers.
How to Identify
Biennial or perennial 2-4 feet tall. Showy purple, pink, or white 4-petaled flowers. Resembles garden phlox but has 4 petals (phlox has 5). Alternate, toothed leaves.
Control Methods
Hand-pull or dig before seed set. Herbicide treatment for larger infestations. Do not plant or purchase.
Herbicide Recommendations
Glyphosate or 2,4-D. Apply before flowering.
⚠️ Always read and follow pesticide label directions. Contact your county weed superintendent for site-specific recommendations. Permits may be required near water.
Need help managing this weed?
Skyline CWMA can connect you with technical assistance, cost-share programs, and licensed contractors for treatment on your property.
