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Disposing of creeping bellflower #932735
Asked May 24, 2026, 2:50 PM EDT
Hennepin County Minnesota
Expert Response
Thanks for the interesting question. I’ve not previously been asked this.
In researching this, decomposition takes much longer if soil is also present in the black bag. Several sources state that with such a method, and if the bag is left in the sun, complete decomposition could take as much as six months to occur.
I am not a resident of Hennepin County so I’m unfamiliar with the policies existing there. I would suggest that you contact the Minnesota Extension Office for Hennepin and pose your question to them. See:
https://extension.umn.edu/local/hennepin
Good luck. This might be a challenging situation. Thanks for consulting us.