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Does fertilizer "Go Bad"?

Discussion in 'Fertilizer Application' started by Schweinhund, Mar 10, 2008.

  1. Schweinhund

    Schweinhund LawnSite Member
    Messages: 3

    A friend gave me a 50lb. bag of Scott's Turf Builder for free. It was a ripped open bag and would not close completey, but I kept it in my shed so it stayed dry. I applied it to my St. Augustine lawn about 2 weeks ago, watered as recommended, but everything is still brownish yellow and nasty looking.

    My question is - since it was exposed to air, does this reduce its potency in any way? Its humid around here, so I'm pretty sure a little moisture got in there. Does this matter and if so, should I refertilize?
  2. gsxr1100

    gsxr1100 LawnSite Member
    from mobile
    Messages: 138

    With the RH so high, is it a block of fert?
  3. poolboy

    poolboy LawnSite Silver Member
    from earth
    Messages: 2,408

  4. Whitey4

    Whitey4 LawnSite Silver Member
    Messages: 2,448

    Fert has a great shelf life.... unless it got wet enough to turn into bricks, it should be fine. The Scotts straight fert is actually a pretty good fertilizer, just apply it at half the recommended rate. The combo products are a problem.... cut the rate, and the AI is not sufficient to control either creabgrass, weeds, etc. The Scotts fert is good... just too much N in it.

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