How do you dethatch and overseed a lawn?

Asked By: Rumilda Cantineiro | Last Updated: 30th May, 2020
Category: home and garden landscaping
4.5/5 (9 Views . 11 Votes)
Overseeding an existing lawn:
  1. Mow the grass lower than usual.
  2. Dethatch and/or aerate the lawn, if needed, using the instructions in the above sections.
  3. Sprinkle the lawn with fertilizer.
  4. Apply the seed with a broadcast or hand spreader.
  5. Rake the seeds loosely.
  6. Water normally.

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Similarly, you may ask, do I need to dethatch before overseeding?

First, you need to dethatch, then overseed and fertilize within a couple days. Mow a bit shorter than you normally would before you dethatch. Not only will this make the dethatching easier, but it will let more of the seed down to soil level. It would be best to use a grass catcher if you can.

Also Know, is Dethatching necessary? Thatch builds up over time, so it's not necessary to dethatch every year. Plan on dethatching every five years or so if your lawn needs it. You might want to give your lawn a quick check every year just to see how much thatch has accumulated.

In respect to this, is it good to dethatch your lawn?

Dethatching causes a lot of damage to your grass and should be done at a time when the grass is growing so it can fix the damage before the next dormant period. Warm-season grass can be dethatched in late spring or early summer after it starts to grow. It is best not to do it in the middle or late of summer.

Is it better to dethatch or aerate?

Thatching is sometimes called dethatching. It removes a dead layer of roots and stems that is found between the grass base and the native soil. This is more stressful to your lawn than aerating is, and is generally only done if your lawn is thinning out due to thick thatch, according to Organic Lawn DIY.

25 Related Question Answers Found

Should I aerate or dethatch first?

Although a thin layer of thatch is beneficial, thatch accumulation should not exceed 1/2 inch. Excess thatch blocks out air, light and water from reaching root zones. Dethatching and aeration services go hand in hand. Dethatch first, then aerate.

How can I make my grass thicker and greener?

  1. Improve Your Soil. To get the most out of every step to a thicker lawn, take a tip from lawn pros and test your soil.
  2. Overseed. Overseeding is simply sowing grass seed into existing grass to make thin lawns thick—or keep them from getting thin.
  3. Fertilize.
  4. Boost Your Lawn.
  5. Irrigate.
  6. Mow Properly.
  7. Control Weeds.

How often should you Dethatch a lawn?

Almost every lawn needs dethatching about once a year, or whenever the thatch reaches a thickness of about 1/2 inch. To check, just work your fingers into the grass and note the depth of the thatch layer. Dethatch cool-season grasses in fall, warm-season types in early spring.

Do I need to remove dead grass before seeding?

Kill weeds and any remaining poor-looking grass with a non-selective herbicide about 2 weeks before you want to seed your lawn. After everything is completely dead, rake the area to remove the debris. 2. After aerating, rake the area level and loosen the top ¼ inch of soil.

How do I Dethatch my lawn by hand?

Begin by mowing the lawn to about half its normal height and watering it slightly to moisten the soil – it should be damp, but not soaking. Next, rake the lawn with the dethatching rake, keeping the blades lightly in contact with the soil and using the same motion as you would for raking leaves.

Will Dethatching remove weeds?

The first step to lawn restoration is to remove any thatch buildup. The best time to dethatch is when your lawn is thriving in the spring or fall. You must expose the soil between the old grass plants and remove weed colonies using a grape (grubbing) hoe or you will have poor results.

How much does it cost to dethatch a lawn?

The Cost of Dethatching? Depending on the thickness of thatch and turf type, the cost for our dethatching service ranges from $200 to $400 per 1000 square feet.

Can Dethatching hurt your lawn?

Dethatching in the spring is a bad procedure for several reasons. If your lawn does have an excessive thatch layer, over ½”, then dethatching is warranted, but do it in the fall when you don't have to worry about damaging vulnerable spring grass or causing crabgrass and other weed seeds to germinate.

What do I do after dethatching your lawn?

If bare spots were created by dethatching, use a patching product, like Scotts® EZ Seed®, to repair them. Fertilize your lawn after dethatching to help the lawn recover. Do not fertilize before dethatching. Keep your lawn well-watered to help your grass recover.

What causes lawn 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.

How do you apply topsoil to an existing lawn?

You can spread topsoil evenly and accurately over the lawn by using a drop-spreader, or you can spread topsoil simply by flinging it with a shovel. The topsoil must be dry enough to spread in small chunks or it will not spread uniformly.

Is Dethatching the same as raking?

They are indeed similar but are used for different purposes. Dethatching is less aggressive and removes small amounts of thatch from a lawn that is mostly healthy. Power raking is more aggressive and usually reserved for lawns with a large amount of thatch.

Do Dethatching blades work?

Small dethatching blades are sold as lawn-mower attachments, but they're not the best choice because they put a lot of strain on the mower. Most people rent a power dethatcher. Because these machines are expensive and dethatching is necessary infrequently, it rarely makes sense to buy one. These machines are heavy.

What does Dethatching mean?

"Dethatching" lawns refer to the mechanical removal from a lawn of the layer of dead turfgrass tissue known as "thatch." This residue is bad for your grass, as it keeps water and nutrients from seeping down to grassroots.

Is it OK to dethatch in the summer?

Although you can dethatch and overseed your lawn in the summer, it is better to wait until very late in the summer or early in the fall. Grass seed sown midsummer must compete with crabgrass (Digitaria sanguinalis), foxtail (Setaria spp.) and other established pests.

Is it possible to overseed a lawn?

Overseeding is spreading grass seed over an existing lawn. Done right, it's a straightforward process that gets results. As grasses mature, thinning is normal—especially if you enjoy your lawn and use it often. Overseeding keeps your lawn competitive and steeped in youth and vigor, without starting over from scratch.

Should I mow after dethatching?

Unless the lawn has extremely heavy thatch buildup, regular aeration treatments would be better. Don't fertilize the lawn for at least 45 days prior to dethatching. If you are planning to apply preemergence herbicides, do so after dethatching. Mow the lawn to the lowest recommended height for your particular grass.