“Is really ok to use weeds when doing compost? Do you have to make sure that they are in a certain stage of growth? Because I really don’t have the time to study them as I pull.” Question from Erin of Kirkwood, Missouri
Answer: You can certainly put weeds in the compost pile if they meet two criteria: (1) They are not sickly or obviously diseased, or (2) they are not noxious weeds, such as bindweed or Canada thistle, that have set seed. I would also avoid trying to compost any perennial weed roots. A well-tended compost pile should heat up enough to kill weed seeds, but when it comes to noxious weeds, I would not take the chance and recommend that other gardeners apply the same precaution. The heating process in the compost pile can also kill any diseases, but once again, I think it’s smarter to err on the side of caution.
Black Gold Horticulturist
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