will weed and feed hurt grass seed

Best answer


For weed and feed products containing post-emergent, systemic weed killers, you can plant grass seed as soon as two weeks after application. That鈥檚 becausesystemic herbicides don鈥檛 leave any residue in the soil that might harm seeds grown a few days after.

People also ask


  • Do weed and feed products kill grass seed?

  • Also, some weed and feed products are non-selective, pre-emergent herbicides targeted at preventing weed seeds from sprouting. As such, when they鈥檙e applied on a recently seeded lawn even before the grass seeds germinate, they鈥檒l kill the weed seeds as well as the grass seeds.

  • Should you use Weed and feed on your lawn?

  • Hunker may earn compensation through affiliate links in this story. Applying a weed and feed product to your lawn may seem like a perfect way to kill two birds with one stone. Not only are you able to get rid of pesky weeds, but the fertilizer contained in the product will also help the grass thrive.

  • When can I plant grass seed after applying weed and feed?

  • The best time to plant grass seed after applying weed and feed depends on whether the weed and feed used contained a pre-emergent or post-emergent herbicide. For weed and feed products containing post-emergent, systemic weed killers, you can plant grass seed as soon as two weeks after application.

  • Can You reseed after weed and feed?

  • Weed and feed products aren’t ideal for all situations, though, and may cause some problems if you plan to reseed the lawn soon after their application. As the name implies, weed and feed products contain both a fertilizer and an herbicide to control weeds while feeding the surrounding grass.

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