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Does newly seeded grass require more fertilizer? (pic)

Discussion in 'Fertilizer Application' started by NJgunner, Apr 22, 2012.

  1. NJgunner

    NJgunner LawnSite Member
    Posts: 51

    I have Kentucky Bluegrass Sod that has been in for about 4 years. Last year I had some disease problems due to high humidity and excess thatch last summer. In the fall I had my lawn dethatched and aerated and then I reseeded some spots. I think some of the spots I reseeded are a different color green, is this because it is its first time growing high or pulling more nitrogen? I am hoping that it turns the same color as the rest of the lawn. My first fert application was Lesco Dimension 24-0-11 about a 5 weeks ago.

  2. Dbry12

    Dbry12 LawnSite Member
    Posts: 51

    A good starter fert should be used to promote root growth. The starter fert should be high in P. There is a chance since using a high nitrogen fert that the new turf will be weak again because it doesnt have a good root system.
  3. NJgunner

    NJgunner LawnSite Member
    Posts: 51

    is that why its differently colored? so should I use some 20-10-10 on those spots?
  4. RigglePLC

    RigglePLC LawnSite Fanatic
    Posts: 12,225

    New young grass is normally lighter green.

    HOWEVER...if the new seed has some ryegrass in the mixture, or if it is a seed that produces a lighter green grass, you may have some persistent spots that are a different color.

    So true, it is hard to find out exactly what grass seed was used to grow the original sod; and it is hard to find out what would match it. And maybe you don't want the same seed if it got diseased. And Kentucky bluegrass is difficult to get much seed "take" on top of old bluegrass.

    Try the seed superstore for a premium, dark green, disease-resistant type.

    If you have no other choice. Buy rolls of sod and just resod the spots. Quick. Easy.

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