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Wanda from Randolph, Al writes

Is Hi Yield Grass Killer safe to use around sunflowers?


Yes, Hi Yield Grass Killer Herbicide is safe for use around sunflowers. It will only kill grassy weeds. The mixing ratio is 1 fl. oz. per gallon of water and a surfactant should be used as well. 

Answer last updated on: 07/01/2016

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