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How to Identify and Remove Yellow Nutsedge From Your Lawn

What is Yellow Nutsedge?

Yellow nutsedge is a difficult weed to control that is found in grass areas. It is important to know that yellow nutsedge is not a grass or broadleaf weed, it is a sedge. 

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Yellow nutsedge is a perennial plant that reproduces by its underground tubers also known as "nutlets". These "nutlets" form at the end of Rhizomes (horizontal roots that allow new shoots to grow upwards). One plant can produce up to several hundred tubers during the summer.

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Yellow Nutsedge Life Cycle

Yellow nutsedge actively grows during the summer. It will continue to grow until the first frost in autumn but it doesn't stop there! A frost will only kill the part of the plant that is above the soil. The remaining portion of the plant (tubers) still remains and overwinters in the soil. Tubers that are not "active" can still germinate and come up the following season!

How To Identify Yellow Nutsedge

 

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Yellow nutsedge is easiest to identify during the summer, as it's leaves grow much faster than grass and it will stick out like a sore thumb! Even if it is not summer there are other ways to identify it. For example, yellow nutsedge can be identified by its stem, leaves and color. It has a triangular stem as well as having leaves in groups of 3 (three-ranked). These leaves have a shiny/waxy look to them which sets them apart from the normal grass. The leaves are a light green to yellow color which can make it difficult to spot. If you look close enough it does not have tiny hairs on the leaf blades which many grasses do.

Natural Ways To Control Yellow Nutsedge

If you only have a few yellow nutsedge plants in your yard, you can hand pull them which will "eliminate" the weeds themselves. The tubers will still be in the soil. If you have a few of them and do pull them out the best way is to remove the ENTIRE plant by digging around the base leaving no trace of rhizome which can be difficult.

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Yellow nutsedge is best controlled when your yard (turf) is well-drained and cut properly (not too short). Yellow nutsedge can still occur in well-drained areas specifically thin grass. The best way to solve that issue is to focus on growing a dense and healthy yard (turf) that can withstand a fight with weeds. To grow the dense turf consult a professional who practices proper turf management, fall fertilization and an irrigation system that can maintain the turf. A few ways to encourage dense grass growth is with core aeration and overseeding which work wonders together. 

Control Yellow Nutsedge with Herbicides

The only reason to consider herbicides is if you have very large patches of yellow nutsedge in your yard. The herbicides generally used for dandelions and crabgrass are ineffective against nutsedge due to it being a sedge. Even with the proper herbicide it still may take multiple applications to control it due to the tubers that are in the soil that have not yet begun to produce a plant.

If you have any questions about yellow nutsedge, interested in our turf management programs, or are interested in any of our other services please contact us at 877-308-8733 or email us at info@carpentercostin.net. We are here to help!

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