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Help Control Buckthorn

The Buckthorn problem

Buckthorn are invasive shrubs or small trees. Two species are found in Minnesota: Common Buckthorn (Rhamnus cathartica) and Glossy Buckthorn (Frangula alnus). Common Buckthorn is the species most often encountered on suburban properties.

Brought from Europe for hedges, buckthorn spread, forming dense thickets in forests and elsewhere. This highly invasive plant displaces native shrubs and small trees, destroying habitat for songbirds and other wildlife.

Management guide

Download our How to Beat Buckthorn guide to identification and management. You can also download individual pages:


See the links under "City buckthorn programs & information" for resources available from your city within the watershed district.

Watch out for Garlic Mustard

Garlic Mustard is another woodland invasive plant. Download the factsheet on how to identify and control this species.

Seek and Destroy Garlic Mustard

Resources from RPBCWD


City buckthorn programs & information


Other resources