logo: University of Minnesota Extension Gardening Information

Is this plant a weed?

Glossy Buckthorn, Rhamnus frangula P. Mill.

Found in:

  • Old landscapes, wetland edges and moist woodlands
  • Full sun to heavy shade

Characteristics:

  • Understory multi-stemmed shrub or small tree reaching 20-25’ in height
  • Shrubs have a spreading, loosely-branched growing habit
  • Rough grey-brown bark
  • Hairy buds are at the end of gracefully arching twigs
  • Leaves are thin, glossy, oval or elliptical; underside of leaf can be hairy or smooth; leaf edge (margin) is smooth (no teeth)
  • Red fruit turns dark at maturity; fruits of varying maturity are present at the same time

Significance

  • Minnesota Restricted Noxious Weed that aggressively invades wetlands and moist woodlands
  • Illegal to import, sell, or transport in Minnesota
  • Upright columnar form of plant was previously sold in the nursery trade

Plants that look similar:

More information and control options for Glossy Buckthorn...

Give us your feedback