Should I Overseed or Fertilize First?

You can fertilize your lawn before or after overseeding. Both tactics work to feed your new grass seed. It's best to fertilize within 3 days of seeding. This means you can spread your starter fertilizer a few days before you lay down your seed or a few days after.

Should I plant grass seed or fertilize first?

You can plant grass seed immediately after applying fertilizer. Please make sure there is no weed preventer in the fertilizer, as this will also prevent the grass seed from germinating.

Should I overseed or fertilize first in the spring?

You are probably wondering whether you should fertilize or overseed first in the spring. Either way you choose to proceed is fine; however, you will want to apply starter fertilizer immediately before or after seeding, according to PennState Extension.