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schrod t1_iurjpws wrote

I have given up poisoning my dandelions. They are everywhere in my yard. How many seasons should wait to be sure they are safe to eat, I wonder?

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Real-Werner-Herzog t1_iuruw7i wrote

Obviously it depends on the type of weedkiller you used, but most weed killers don't move within the soil and degrade pretty quickly, so new growth that hasn't been exposed to the poison should be generally safe.

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BradenKarony t1_iurx0qy wrote

Regarding the lawn, use a weed preventer like Preen to prevent new seeds from germinating. Plants are unaffected by it, but it'll stop new weeds from spreading

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