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Japanese barberry (Berberis thunbergii) #337740 - Ask Extension

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Japanese barberry (Berberis thunbergii) #337740

Asked June 29, 2016, 1:28 PM EDT

I am on the landscape committee in a town home association in Woodbury. We just became aware of the MN DNR three-year phase-out of Japanese barberry in MN. I looked at both the DNR and MN Department of Agriculture webpages describing restricted cultivars. 1) Just to be sure about this--does this list restrict virtually all barberries that are sold in MN nurseries, including the dwarf varieties? 2) Should we be removing existing barberries (we only have dwarf varieties) from our landscape? Thank you!

Washington County Minnesota

Expert Response

So far as we know, barberry varieties not prohibited will be allowed for sale. Adjustments to the prohibited list may be made when more information about their potential to spread is available. The following article describes this challenging process:
https://issuu.com/minnesotanla/docs/mnnla_sept13_escoop_final/20

For information about the availability of non-restricted barberry varieties and recommendations regarding the management of barberries in your landscape, please direct your question to the Minnesota Department of Agriculture Noxious Weed Team:

Anthony Cortilet
Noxious Weed Law
Anthony.Cortilet@state.mn.us
651-201-6538

Monika Chandler
Early Detection, Biological Control, and Data Management
Monika.Chandler@state.mn.us
651-201-6537

Emilie Justen
Early Detection and Rapid Response
Emilie.Justen@state.mn.us
651-201-6360



Bob Bystrom Replied June 29, 2016, 10:32 PM EDT

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