Non-native Species of the Month
Japanese Barberry
(Berberis thunbergii)
Japanese Barberry is a woody perennial plant on Minnesota’s Prohibited-Control weed list and is a garden escapee. This plant has a mounded form with long branches that sport small ovate leaves. In the winter, Japanese Barberry can be easily identified by its bright red fruits and spines at each branchlet. It invades many different types of habitats, growing in full sun to shade and all types of soil conditions. Control should focus on preventing fruit formation as birds will spread the seeds. Methods include cutting and treating stumps, hand pulling smaller plants, and foliar herbicide applications for larger infestations.