Some of those beautiful small Barberry shrubs, so prized for their colorful summer foliage have turned into thugs in the woods! The red berries are carried by birds and the seeds rapidly germinate. City staff members have noted particularly high germination on green barberry types and it is recommended that homeowners, property managers and commercial establishments remove these plants immediately and substitute non-invasive landscape plants. Barberry plants will no longer be acceptable for planting plans for development review for new projects.
DNR has now listed Barberry shrubs on its terrestrial invasive species list. Barberry seedlings invade oak woodlands and oak savanna areas and prefer well-drained soils, like most of Fridley and our parks and shorelines/bluff areas. Once established its prolific spreading shades out native plants. Japanese barberry was introduced to North America and is non-native.
By end of 2017, these will be illegal to sell & propagate:
These cultivars average greater thank 600 seeds per plant and will be labeled Restricted Noxious Weeds in MN