Fertilizer? How often?

Discussion in 'Fertilizer Application' started by majorjake, May 23, 2006.

  1. majorjake

    majorjake LawnSite Member
    Posts: 20

    I keep hearing that the "lawns are heavily fertilized" and thats why the grass is so thick. Should'nt fertilizer be used every 6-8 weeks, or can you apply it more frequently to increase the thickness and color of your grass to a greater extent?
  2. Rtom45

    Rtom45 LawnSite Senior Member
    Posts: 456

    Most northern lawns require no more than 4lbs/1000 of Nitrogen every year. The greatest benefit is derived in the spring and early fall, but you can apply anytime during the year. Golf courses, for example, apply light fertilizer throughout the year. High quality slow release fertilizers reduce the number of times you need to fertilize in any given year. Keep in mind as a general rule, the more fertilzer you apply the more often you need to mow.
  3. muddstopper

    muddstopper LawnSite Silver Member
    Posts: 2,342

    Advoid N apps in the hot summer months for cool season grasses. Thats not to say you cant use some N, just dont over apply. The heat and humity along with the nitrogen can casue fungus problems. I usually dont apply any N during the months of June, July, and August, nor in Dec, or Jan., since most of your cool season grasses will be dormant then anyways. That leaves you 7 months to apply 4 lbs of N. Split those applications and you wont have any problems of excessive growth spurts
  4. americanlawn

    americanlawn LawnSite Fanatic
    from midwest
    Posts: 5,852

    Slow release fert is the key - commonly anywhere from 40% to 20 %.

    Our 5 app lawns always look better than TruGreen's 8 app program.

    Clay soil lawns need much more more fert - especially if they are weak to start with. Shady/loam lawns require less.

    The above guys offer good advice as well.

    Good luck, American.

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