Is it safe to apply weed killer to soil before planting vegetables? What type is best?
Weed Killer in Vegetable Garden
Certified GKH Gardening Expert
Almost all weed killers have a period of time after which where it is safe eat food grown in them. The time varies. Organic solutions may take longer to kill the weeds but are less costly and have a shorter time for safe consumption. Chemical controls tend to be more effective but will take longer to fade.
In short, really they are all technically safe. Which you use in your garden is a personal choice.