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How to Kill Fescue Grass

Fescue grass can rise from the soil to become a blight in many lawns and gardens. Fescue grass grows in clumps, which makes it stand out when compared to traditional bluegrass. Because of this growth habit, fescue grass is frequently seen as a weed. It can be difficult to mow effectively and is known for its hardiness. It begins growing earlier in the year when it is still too cool for other grasses to begin spreading, and this is the best time to eradicate it. Killing fescue grass needs to be done carefully to preserve the rest of the lawn or garden.

Spray the fescue grass clumps with glyphosate, found in many common herbicides, in early spring when it first starts growing. This helps kill it quickly before bluegrass starts growing normally. Damage to the rest of the grass should be minimal.

Cut the fescue grass down to 6 inches in height if it is longer than that later in the year. This will make herbicides more effective in killing it. Longer fescue grass is hardier and more resistant to chemicals.

Request that a lawn care service apply TFC in the Fall. TFC stands for "Tall Fescue Control" and it is a restricted-use herbicide that will slowly kill fescue grass while leaving other grass around it intact.

Pull or dig out any remaining clumps that have not yet been killed off after the herbicides have been applied.

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