when to put fertilizer on grass seed

Best answer


Four or six weeks after the grass has germinated, apply regular fertilizer that is predominantly Nitrogen. Two pounds of Nitrogen fertilizer will ensure dark green, healthy, and attractive grass. Whether using cold season or warm season grass seeds, you will need around 4 or 6 pounds of fertilizer per year.

People also ask


  • Should I fertilize before or after seeding grass?

  • When seeding grass, the order in which you add the fertilizer and seeds doesn’t matter, but adding fertilizer at the time you seed a lawn is important. You can combine the fertilizer and seed and broadcast them together, or you can broadcast the seed and fertilizer separately, one immediately following the other.

  • When should I apply starter fertilizer to my lawn?

  • It is best to apply starter fertilizer just before, or at the same time as planting grass seed. Follow-up at least four to six weeks later with a regular fertilizer. More frequent application can be harmful to your lawn and the environment, so don鈥檛 overdo it.

  • How do you fertilize a lawn after overseeding?

  • If you overseed your existing lawn, you can sow the seeds first (after raking any thatch buildup) and then apply the starter fertilizer across the lawn to lightly cover the seeds and deliver the proper nutrients. The new seeds will germinate and mix into the existing grass matrix.

  • How often should I fertilize my lawn?

  • The ratios of nutrients can actually be harmful and burn established grass. I recommend using a traditional, nitrogen-rich organic fertilizer 6-8 weeks after planting new grass. While you may be eager to fertilize again to encourage growth, fertilizing too often is harmful. It can burn your grass, leach into the water table, and more.

    when to put fertilizer on grass seed

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