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fast growing lawn weeds

Fast growing lawn weeds

Nutsedge is also easy to pull out of the ground but you need to be careful that you pull it out near the base of the soil and to make sure that you pull out the entire root. If you don’t, you would be ending up splitting the root which will lead to more offshoots of the weed. Nutsedge is a perennial sedge and can grow each season unless you have it under control. Using a product like SedgeHammer will keep it at bay.


Common Couch

This ornamental plant has striking blue-green foliage and is often grown as a ground covering or as accent plants. It grows in mounds up to 12 inches in height. Blue fescue is also an evergreen and a cool-season plant. The foliage grows in needle-like spikes and has bright green flowers.

Add The Weed Killer

While it shares a name with other fescues, such as tall fescue. This plant is different from the fescue grasses that are typically found in turf lawns. If this grass has taken over a portion of your yard unexpectedly management options include hand pulling or the application of a glyphosate herbicide.

Fast growing lawn weeds

Read the instructions on the label of your herbicide bottle to determine how to apply it properly. You will usually spray diluted MSMA herbicide over your entire lawn. For instance, the instructions may tell you to mix 1.5 ounces (45 milliliters) of chemical into 5 gallons (20 liters) of water to treat 1000 square feet (92.9 square meters) of lawn.

Dandelions are the bane of many peoples lawns. Thriving in thin, sparse turf, dandelion seeds float through the air looking for the slightest opening in the lawn to propagate. Meanwhile, below ground, they develop a taproot up to 10″ long. This taproot is thick but brittle and easily fractures and any piece of the taproot that remains in the ground will re-grow.

Organic Solution:
Again, the best defense is a good offense. Regular overseeding of your lawn will encourage a dense root system which will not provide space for Quackgrass to grow. Unfortunately, there are no organic products that are effective at eradicating Quackgrass. If the area affected is small, digging it up is a good option but be sure to get all of the roots. Frequent mowing is also an effective way to control this as mowing prevents Quackgrass from making seeds for the future. Be sure to keep the mowers blades set to a height of 3 inches. Another option to prevent Quackgrass from germinating is to apply Corn Meal Gluten in early spring as this acts as a pre-emergent herbicide. Please note that since corn meal gluten is a pre-emergent, you cannot overseed your lawn until the fall if you use corn meal gluten in spring. A further alternative is to pour boiling water on Quackgrass as boiling water kills any and all plants. If you use boiling water you will need to re-seed the affected areas.

Native to Europe, Quackgrass is easy to identify. It produces long, wide-leafed grass and the grass blades have a rough almost burr-like feel to them. The thick, white roots form deep, dense mats and these roots tend to break easily when pulled leaving pieces in the soil after the grass has been removed. Any pieces left in the ground will quickly re-grow into new plants.

Broadleaf plantain is a perennial weed that tolerates a wide variety of growing conditions such as, dry soil, wet soil, heavy clay soil and low mowing heights. Left undisturbed, plantain can grow as much as 12 inches across and 2 feet tall.

Allow your lawn to grow for a few days prior to application. Herbicides works best when the nutsedge is growing vigorously and may not be as effective if applied immediately after cutting it down. Wait two or more days after your last lawn mowing before applying the chemical to the lawn.

Organic Solution:
Black medic is not shade tolerant, therefore the development of a thick, dense turfgrass canopy helps improve competition against it. Unfortunately repeated hand pulling is really the only good option, especially before it start to make seeds. You can also try using either a vinegar based or citric acid organic herbicide.

Fast growing lawn weeds

That said, it spreads quickly, and because of its thick blades and lateral growth, it can quickly do permanent damage to your lawn by crowding out and smothering the grass surrounding it.


Hi Sarah! Thank you so very much for all your help! This is the most information I have ever received! I love the idea of mixing grass seed … this could be a very good solution. My lawn is not very big … I have four ESS and of course they have worn paths to their various ‘barking stations’ ! The lawn is basically sunny and has thrived well. But, over time, some of the grass has worn despite my best efforts at ‘re-seeding’. I was relieved to learn that there are many types of Tall Fescue Grass. I would really like to see some great photos of lawns using this variety: google just doesn’t cut it!
Again, thanks so much Sarah. I live in BC., Canada so our climate is quite different from yours. Fortunately, living in the southern part (coast), we experience quite a mild climate, lots of rain in the winter with very little snow and our summer highs almost never reach higher than 34C. I will take all your suggestions under advisement and begin my research pronto!

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You’ve been working hard on cultivating the perfectly manicured lawn, taking all the necessary steps to plant seed or sod, fertilize, and mow appropriately. Despite your best efforts, there seem to be patches of your lawn that don’t match the rest. There are some common weeds that look like grass which tend to blend in with a lawn and thus can be more difficult to identify and target when compared to the average dandelion.