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How to Kill the Bright Green Grassy Lawn Weed Called Nutsedge

May 24, 2016

Ortho has a spray to kill tough lawn weeds like Nutsedge, Wild Onion, Wild Violet, Ground Ivy, and about 50 others including Dandelion and Clover without harming your good grass.  Ortho Nutsedge Killer for Lawns can be used on most any kind of lawn.

You think you are getting rid of this very pesky weed because it is easy to pull. However, Nutsedge quickly grows back from the bulb-like roots that are left behind in the soil.  (Some folks call this weed Nutgrass)  Click photo to enlarge

You think you are getting rid of this very pesky weed because it is easy to pull. However, Nutsedge quickly grows back from the bulb-like roots that are left behind in the soil. (Some folks call this weed Nutgrass) Click photo to enlarge

Ortho Nutsedge Killer for Lawns comes in two kinds of sprays.   If you only have a small patch of weeds you are trying to kill, there is a ready to spray squeeze trigger bottle (click here to check it out).  If you have a big area with lots of lawn weeds it comes in a spray bottle that attaches to the end of your hose (click here to check it out).

It is best to spray weeds when they are actively growing.  If your lawn is stressed from drought and weeds are not growing very much, wait to spray when your lawn is getting regular rain or irrigation.  Also, you do not need to drown your weeds with spray to kill them.  Just wet the leaves and they will eventually die.

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6 Comments
  1. melissa / james Redmond permalink

    Hello…I have planted grass seed a month ago, how soon can I use the nutsedge killer?…would pulling it be effective? Thank you for your help.

    • Hi Melissa/james Redmond
      Your new grass should be well established before spraying with Ortho Nutsedge Killer. The rule of thumb is that if your new grass is old enough to have needed 4 mowings, you can spray. Nutsedge is easy to pull however new plants typically grow from the “bulbs” that easily break from the roots and get left in the soil.

  2. Linda permalink

    How will nuthedge spray affect flowers or plants in the area or if planted post spraying? How long after spraying is it safe for pets to walk on the treated area?

    • Hi Linda
      Ortho Nutsedge Killer should not be sprayed on flowers or plants other than your lawn. After spraying on your grass you will need to wait a month to put down grass seed. I answered your other questions on one of my other blog postings and you mentioned a crabgrass preventer… this kind of treatment means that you will need to wait until early fall to seed. Give me your location and I will try to help you more with a plan for your lawn.

  3. Matt utter permalink

    Why isn’t this product available in new York? Can’t get it at home depot or Lowes here

    • Hi Matt utter
      The active ingredient in this product has been approved by the federal EPA and by all states except New York. It is available for sale in all other states. Sorry I do not have a better answer or an alternative product to recommend.

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