Home Improvement

What causes thatch in St Augustine grass?

Thatch is accumulated organic matter that is persistent, meaning it doesn’t decompose as fast as it builds. This layer of organic matter is caused by excessive mow clippings, leaves, and other debris that settle and rest on your lawn.

How do I get rid of thatch in my St Augustine grass?

Use the hand rake to pull the thatch layer up to the surface. If it comes up easily, you can rake it into piles and remove it. However, if it’s deep and compacted, you may have to rake up what you can, and then go over the lawn again with a mower. Use a bag to collect the clippings and loose thatch.

How do you stop thatch buildup?

Overseeding to fill in bare or thin spots in the lawn may be needed. To prevent thatch buildup, use a high quality, slow release nitrogen fertilizer, such as a GreenView Fairway Formula Fertilizer, and mow to keep the grass about 3 inches tall.

What is the main cause of thatch?

Thatch buildup happens if there is poor soil aeration and drainage. Improper lawn watering practices (usually too much water or too frequent water), cold soil temperatures, the use of chemical pesticides, and the use of synthetic fertilizers are all factors that increase thatch accumulation in lawns.

When should I dethatch my St Augustine grass?

Enough that it's not leaving clumps. And you'll know and you look down in your grass you'll be able to see after you mow over if if you can see the grass clumped up there or matted across st augustine

Are you supposed to dethatch St. Augustine grass?

Dethatch St. Augustine in spring, when the grass has exited winter dormancy, greened up, and grown high enough to be mowed. Dethatch in spring, between March and May. After spring green-up, when your lawn has been mowed at least once.

How often should you dethatch St. Augustine grass?

Augustine grass, and should be removed. We suggest dethatching early in the spring, before applying your pre-emergent herbicide. Before dethatching, mow your lawn to half of its normal height (about 2 inches tall). Then use a dethatching rake or a mechanical de-thatcher and run it across your turf.

How do you get rid of thatch naturally?

And most common method of thatch removal on home lawns is to simply drop the height on your lawnmower. If your fetch is really thick this may have to be done gradually over a few most.

Does fertilizer break down thatch?

It contains specific microbes and enzymes designed to generate and accelerate thatch decomposition. Your lawn will need regular fertilizing because soil microorganisms need nitrogen to decompose thatch.

Does aeration help with thatch?

Aeration helps loosen the soil and helps decompose the excessive thatch layer at a faster rate. Both services accomplish a similar goal, but lawn aeration does so without the possibility of damaging your lawn in the way that dethatching would.

Why is my St. Augustine grass spongy?

Spongy lawns are the result of excess buildup of old and dead grass material. Some types of grass don’t produce thatch but others with thick stolens will trap their own leaves and stems. Overly thick thatch not only makes the lawn spongy but can interfere with the plant’s ability to gather air, water, and fertilizer.

How do I make my St. Augustine grass thicker?

How To Make St. Augustine Grass Thicker

  1. Preparation. It is best to purchase St. …
  2. Irrigation. This is especially important after installing sod for the first time. …
  3. Mowing. These tips are quite simple: leave no less than two thirds of its length intact, mow with sharp blades, and don’t bag the trimmings. …
  4. Fertilizing. …
  5. Weeding.


What does it mean when St. Augustine grass turns yellow?

ANSWER: This yellowing is likely due to all of the rain. Rains leach nitrogen out of the soil, which causes some yellowing. Also, when the soil stays wet, grass roots are stressed and don’t work as well. So the roots may not be properly absorbing minerals like nitrogen from the soil.

Can you water St. Augustine grass too much?

If half of your yard begins to have these symptoms, it is time to water the entire turf. J & J Lawn Service says you can overwater St. Augustine grass. If you see your lawn is wilted, squishy, water doesn’t absorb anymore or there’s fungus growing, you are likely overwatering.

How do you change yellow grass to green?

Soil Solutions

  1. If soil issues caused your yellow lawn, you can amend the soil with compost. This can help fix problems such as poor drainage and proper pH levels.
  2. Adding fertilizer can also help repair a yellow lawn. …
  3. Nitrogen or iron supplements can restore yellow grass to green.


What does Overwatered sod look like?

Watch the new sod for color changes. If you see the leaf blades turning a grayish-green, pull up a corner of the sod. If the soil is wet and mushy, you’re watering too much. Let the sod dry out until the top 2 inches of soil are dry and crumbly.

Why is my lawn yellow after mowing?

Low quality soil that drains too quickly or holds little water can also cause your lawn to yellow after you mow. Patches of sandy soil drain faster than the surrounding soil, leaving your grass less able to withstand the stress of mowing.

Will watering dead grass bring it back?

Follow Watering Schedule



Watering will help dormant grass become green again, while dead grass will remain brown.

Does St Augustine grass go dormant?

St Augustine grass will go dormant when the soil temperatures fall below 55 degrees. If the soil remains warmer than 60 degrees all year, the grass will stay green. It will, however, slow in growth as the soil drops in temperature.

What does a thatched lawn look like?

This is exactly what it looks like when thatch dies out it'll be very spotty. And it'll die in usually circle area so they'll be green green grass in between and this is all from thatch.

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