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Hyacinth Plant

Q.How long does weed killer last

Zone Burnaby, BC Canada | JWNC added on June 24, 2015 | Answered

How long does weed killer last before the surrounding plants are good to eat? I like harvesting wild plants to eat, plantain, dandelion, and many others. My concern is the weed killer spray that most cities use. How long does weed killer last before the surrounding plants are good to eat? Thanks.