How to Grow Nutgrass

Yellow nutgrass is considered an invasive weed in some states. image by Sky24/


Nutgrass (Cyperus rotundus L.) is classified as a noxious weed in four states (California, Oregon, Washington and Arkansas) and is considered an invasive or nuisance weed in several others. It is often called "nutsedge" and can be classified as purple or yellow. This short, unassuming plant is actually very difficult to control, which is something you need to carefully consider before choosing to plant and grow it.

Step 1

Choose a sunny, moist location to plant your nutgrass. Nutgrass does not tolerate drought or shady conditions very well. In warm, sunny locations, however, one tuber can produce as much as 2,000 new tubers in one growing season, which is why some states consider it a noxious weed.

Step 2

Plant your nutgrass tuber only two inches under the soil. Nutgrass is a shallow-rooted plant. Make sure you establish it away from other plants, as it does not compete well and can be overgrown by crops. There is no need to fertilize it.

Step 3

Water your nutgrass tuber during extended hot, dry spells that last over a week.

Step 4

Protect nutgrass from a late frost. Frost will damage the new shoots if they appear in the spring before the last frost. If there is a danger of frost, simply put a layer of mulch over the new shoots.

Step 5

Control your nutgrass. In the right conditions, nutgrass spreads very rapidly. It is not easily killed by chemicals. The best way to control the unwanted spread of nutgrass is to till it (exposing the tuber) during extended dry spells, then remove the tuber and any parts of the plant by hand.

Tips and Warnings

  • Do not grow nutgrass in any state that considers it a noxious or invasive species. To find out if your state allows the growth of nutgrass, click on the link in the Resources section.

Things You'll Need

  • Trowel or shovel
  • Nutgrass tuber or tubers
  • Watering tools
  • Mulch


  • Controlling Nutgrass
  • Nutgrass

Who Can Help

  • Nutgrass Plant Profile
Keywords: grow nutgrass, tuber, weed

About this Author

April Sanders has been a professional writer since 1998. She has worked as an educator and now writes academic research content for EBSCO Publishing and elementary reading curriculum for Compass Publishing. She holds a Bachelor of Arts in social psychology from the University of Washington and a master's degree in information sciences and technology in education from Mansfield University.

Photo by: Sky24/