Common buckthorn is found in Canada as far west as Saskatchewan and as far east as Nova Scotia. It also grows throughout the northeastern and north central United States.
Buckthorn thrives in a variety of habitats and forms dense thickets that crowd and shade out native plants. It can alter nitrogen levels in the soil, creating better conditions for its own growth and discouraging the growth of native species.
How do I permanently remove buckthorn?
A chemical free method involves cutting the stem of the plant a few inches above the soil. Cutting can be done with hand tools (for a few plants), chain saws or brush cutters. Cover the cut stump with a tin can or black plastic (such as a "Buckthorn Baggie") to prevent re-sprouting.
Applying a chemical (e.g. Garlon 4, glyphosate) to a recently cut stump is usually quite effective at killing buckthorn with a minimal amount of chemical. Again, cut buckthorn shrubs using hand tools, chain saws or brush cutters, close to the ground.
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