Does CGM have any effects on broadleaf weeds?

Discussion in 'Organic Lawn Care' started by mikesturf, Mar 24, 2008.

  1. mikesturf

    mikesturf LawnSite Senior Member
    Messages: 797

    I know Corn Gluten Meal helps with annual weeds. Will it control or have any effect on established broadleaf weeds. Will if have any effect on preventing the SPREAD of future broadleaf weeds. Does CGM have any effect on viney weeds like violets.
  2. NattyLawn

    NattyLawn LawnSite Bronze Member
    Messages: 1,643

    CGM will not kill or affect established weeds.

    CGM will help stop the spread of future broadleaf weeds. CGM contains a natural enzyme that will build up in the soil, usually taking about 3 years to get 80% control of seed germination.

    I would say yes, that CGM will knock back violets. Being a difficult to control broadleaf weed, your results may vary.

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