how long after using roundup can i plant grass seed

Best answer


Three days

People also ask


  • How long after spraying Roundup can I plant new grass?

  • Roundup suggests waiting one full week or 7 days, before planting or reseeding grass after spraying their product. This is so that the Roundup has sufficient time to move to the roots of any weeds that have been sprayed, and make sure the spray dissipates completely before planting new grass.

  • How long does it take to reseed after using Roundup?

  • Depending on the product you use, you may have to wait for months before you can reseed. If you want to plant your grass as quickly as possible, you can use Roundup Weed and Grass Killer Concentrate Plus, Super Concentrate, or Ready-to-Use Plus variants.

  • Is Roundup safe for grass seed?

  • Roundup can not do any harm to the grass seed. It works with plant roots and weeds. So the grass grains will be safe after using on the Roundup. How long is Roundup active in the soil?

  • How long after using weed killer can you plant grass seed?

  • If you are using products such as Ready-to-Use Weed Grass Killer III, Weed Grass Killer Concentrate Plus, or Weed Grass Killer Super Concentrate, you can begin planting grass seed after just three days, advises Roundup. Other products require a longer wait time.

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