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Weed Identification

dames rocket



Scientific Name

Hesperis matronalis

Other Common Names:

dames violet


This upright perennial blooms from May through August, and can grow up to 5 ft in height.


The hairy leaves grow in an alternate arrangement, and are oblong to lanceolate in shape. The leaves can grow from 3 to 8 inches in length, and get progressively smaller as they move up the stem.

Identifying Characteristics

This plant is similar to the New York ironweed, but can be distinguished by its earlier flowering period, and wider leaves.

Flower Seed Head

The purple to white flowers occur in loose clusters. Each individual flower has 4 petals.

Seed Fruit

The seeds develop in a silique that can grow from 2 to 4 inches in length.

Where Found

This plant prefers moist soil in full sun.

Life Cycle


Plant Type