How to Kill Water Grass Weeds

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Things You'll Need

  • Gardening gloves

  • V-shaped weeding tool

  • Crabgrass selective weed killer spray


Do not mow your lawn prior to applying a weed killer. You want as much of the weed as possible to soak up the chemical killer to ensure it is killed.

Do not water the lawn for 24 hours after spraying with a weed killer.

Get rid of water grass weeds with a weed puller or selective weed killer spray.

Water grass is a name often used to reference crabgrass. This type of weed is an annual and will come back year after year. Water grass invades wet lawns and continues to take over the landscape if it is not properly treated and killed. The weeds may be pulled manually or killed with a selective weed killer spray. Wear gardening gloves to protect your hands when removing water grass weeds.

Step 1

Slice the water grass at the root using a v-shaped weeding tool. Place the tool into the soil and push down and into the root.

Step 2

Pull up the weed with the tool and discard it.

Step 3

Repeat steps 1 and 2 to remove each water grass plant individually.

Step 4

Spray the weeds with a selective crabgrass weed killer. These weed killers can be found at most hardware and home and garden stores. A selective weed killer is formulated to only kill the desired weed and not the surrounding grass.


Diana Braun

Diana Braun began her writing career as a consultant and technical writer for a software company focusing on how-to, training, white paper, and internal process documentation. After two years, Braun left to pursue her entrepreneurial dreams. Since then, she has launched several startups including a t-shirt business, an online marketing and advertising t-shirt distribution business, and an entertainment site. She currently resides in South Florida.