BUCKTHORN ERADICATION

Buckthorn Removal Guide

The first step in removing buckthorn is understanding the invasiveness of this plant. Buckthorn is easily controlled in mowed areas, but in natural areas, it is devastating! Experts say, "If we don't do anything, 10 to 20 years from now we won't see any fall colors; it will all be green." That is why buckthorn is on the state's noxious weed list. Learn more about Buckthorn Eradication at the Minnesota DNR website.

Remove Seedlings and Small Shrubs by Hand
The roots are not deep but rather stretched out horizontally, so small seedlings can be gently pulled out by hand, using a hoe or mowing. Gather the loose seedlings so they don't re-root.

Cut Large Stems and Prevent Their Return

1. Use pruners or a hand saw to remove the upper portion of any larger buckthorn. Please Note: Do not cut buckthorn within 4 hours of raining. The following spray method will not have time to be effective.
2. Areas should be cleared of buckthorn brush when cut to remove any berries that may be on the brush and to make the spraying easier.
3. Use the stronger formulation of Roundup (25% concentration). Spray this undiluted concentrate directly onto cut stumps making sure to spray all sides of the bark area on the stump as well. This stump treatment must be applied within 24 hours after cutting and when temperatures are above freezing between June 1st and March 15th.
4. Note: This method of removal may also be used to remove other woody invasive species such as Tartarian Honeysuckle or Mulberry.

The last step in removal of buckthorn is to prevent it's return to avoid the process again! Reasonably high success can be accomplished with the above methods, but we need to be diligent about checking the area for new seedlings and removing them as done previously. Each buckthorn berry contains 3-4 seeds. Seedlings may appear in the area where a stump was removed or treated for several years after. However, the battle can be won if we persist with our efforts.