State Noxious Weed List -No

Growth form: Biennial or occasionally short-term perennial herb in the mustard family. The plant resembles phlox, but has 4 petals not 5. The plant grows 2 to 4 feet tall, the stems are erect,
and often branched. Leaves are alternate, lanceolate, sharply toothed, and pubescent.

Dames Rocket flowers are found from early May through June, fragrant, and generally purple but occasionally pink or white. Seeds are produced in long pods typical of the mustard family. Dames rocket overwinters as a rosette.

Dames rocket is an escaped ornamental from Eurasia and most often found along roads, streams, near woods and in thickets. The first introductions to North America began in the 1660s and the plant is considered naturalized. However, infestations have been increasing rapidly in the north central states. Dense infestations compete with native species.