December’s Weed of the Month is Japanese barberry (Berberis thunbergii). This species is a specially regulated plant on Minnesota’s Noxious Weed list.

Japanese Barberry (Berberis thunbergii) Japanese Barberry is a popular landscaping shrub, appreciated for its dense form, thorny branches, and colorful foliage. However, it’s considered invasive ...

Japanese barberry, a woody shrub in the Berberidaceae family, is an understory invasive that can live in many different soil and light conditions. It has nitrogen containing roots (giving them a ...