Most of these weeds will germinate in the cooler months of the year, in fall and winter, with small yellow flowers emerging late in the following spring. Flowers can continue to bloom throughout ...

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

March’s Weed of the Month, leafy spurge (Euphorbia esula) is an invader of pastures, forage, grasslands, and ditches. It is native to Eurasia and has become widespread throughout the United ...