How Do You Get Rid Of Yellow Spots On Your Lawn?

Yellow spots on the lawn can be unsightly, and it is a problem that you need to tackle quickly to prevent the yellow spots from spreading. So, how do you get rid of yellow spots on your lawn?

Most circular yellow spots about the size of your hand on the lawn are caused by pets peeing on it. Bigger more spread areas that are yellowing on the lawn are caused by lawn care issues.

The problem with getting rid of yellow spots on the lawn is that there are several reasons why they could be there. Each problem has its own solution. In this article, we want to look at some of the more common causes of yellow spots on the lawn. We also wish to share some advice on dealing with the issue.

Why Does My Lawn Have Yellow Spots?

There are several reasons why your lawn may have yellow spots. You cannot even begin to deal with the issue unless you know what is causing it. Here, we want to run you through the more common reasons why your lawn may have yellow spots. Later on, we’ll tell you how to deal with the problem.

Yellow Spots Caused By Pets Peeing On The Lawn

Pets peeing/pooping on the grass will cause round yellow patches to appear. The ammonia in their pee can kill the grass. In some cases, there is no way to restore the green color. You just have to cut the dead grass out and resow.

Yellowing Lawn From Poor Watering Habits

While you don’t need to be as precise with watering your grass as other plants, you still need to ensure that you aren’t overwatering or underwatering. Both can lead to damage, which results in yellowing spots on the grass.

Even if you water your lawn regularly, you need to factor in the type of soil that you have. For example, if you have sandy soil then it won’t absorb water as well. This means more frequent watering is needed, particularly during the summer months. If you have clay-heavy soil, then it may retain water for a lot longer. This means that you need to water less.

Yellow Spots From Poor Lawn-Cutting Habits

Blunt lawnmower blades damage the grass. Blunt blades tear rather than cut, which can impact how great the grass is at absorbing nutrients and water. If you notice that your grass is yellowing shortly after mowing the lawn (i.e. within a few days), then this could be the cause.

Cutting the grass too short could also lead to yellowing.

Yellow Spots From Poor Fertilizing

Your grass needs fertilizer. The right fertilizer in the right quantities. So, don’t over or under-fertilize. When you apply a fertilizer make sure that it is designed for grass. Also, pay attention to how to use it. If you use fertilizer incorrectly, then it won’t work.

Poor fertilization is likely to be the cause if the soil isn’t dry or waterlogged.

Yellow Spots From Soil Being Too Acidic 

You want your grass to be in soil somewhere around the 5.5 pH mark. it is OK for the soil to be a little bit more alkaline. But, if the soil is too acidic, it can cause yellow patches. You can test soil pH by purchasing a soil testing kit. Anything between 1 and 7 is acidic. As long as it is close to 5.5 pH, you’re fine.

Pests Causing Yellow Spots On The Lawn

While most pests can cause yellow spots on the grass, the two biggest culprits are grubs and leatherjackets. If you spot any of those in your garden, then you know the source of your problems.

How Do You Get Rid of Yellow Spots On Your Lawn?

Once you have identified why yellow spots have appeared on your lawn, the problem becomes a lot easier to tackle. There are four things that you can do to try to undo the damage.

You may not notice an instant impact, but as long as your grass isn’t dead and you are in the midst of the growing season, you should find that your grass will eventually start to green up a bit.

Keep Pets Off of Lawn To Prevent Yellow Spots On The Lawn

If you have pets, do your best to keep them off the lawn. If they must run about on the lawn, make sure they don’t pee or poop there. If you have a dog, this may require a bit of training. Some dog owners will have a dedicated ‘potty’ location in their garden. They then encourage their dog to pee/poop on that rather than the rest of their beautiful lawn.

If it is too late and you already have the spots, and there are getting to be more and more of them, it is time to take serious measures.

  1. The pets pee has to stay off the lawn.
  2. You have to dig out the spots about 3″ to 4″ deep and bring new soil and seed new lawn in those spots. You can also buy some sod and patch the spots for instant results.

Watering Issues

You can tell if your soil is too dry by checking just underneath the surface of the grass. Well-watered grass should be dampish up to 4 inches beneath the surface. Not waterlogged. Just dampish. You don’t want the soil to be dry, but you also don’t want it to be too wet.

Dealing with this is easy. Just water the soil more frequently, ideally at least once per week. If your soil struggles to hold water then you may need to bump this up to two times per week.

Waterlogged grass will often have puddles on it. You may also notice that the soil beneath the surface is very muddy and sticky. The best way to tackle this problem is to aerate the soil. When you aerate your soil, it makes it easier for nutrients and water to reach the roots of the grass, boosting its health.

Fertilizer Issues

If watering doesn’t seem to be the problem, then it could be a fertilization issue. If you want your grass to be healthy, you can’t rely on the soil to provide all the nutrients that it needs. Using fertilizer is the only way to guarantee that your grass will grow healthy and green.

Purchase a quality grass fertilizer and use it properly. Follow the instructions to the letter. Don’t over-fertilize your grass either. At the most, you need to fertilize grass 2-3 times per year.

Acidic Soil

If your soil is too acidic, (below 5.5 pH), then you’ll need some garden lime to neutralize it. Once or twice per year, spread a 1/3 oz of garden lime over each square foot of your grass. It won’t kill the grass as long as you spread it evenly. The soil will absorb it, eventually neutralizing it.

Sharpen Your Lawnmower Blades  

Keep your lawnmower blades sharp. This can prevent future damage to the grass, and it will help your current grass heal.

Pest Control

If you notice grubs, worms, leatherjackets, etc. on your grass then invest in a pest control solution. Make sure that you purchase something suitable for use on plants. You don’t want to make the yellow spots worse, after all.

How to Prevent Yellow Spots on My Lawn?

Prevention is always better than a cure. Thankfully, tackling yellow spots on your lawn is dead simple. A lot of it is about keeping up with a regular lawn care schedule.

Regular Watering Schedule

You should be watering your grass at least once per week during the growing season. Your grass shouldn’t really be getting more than 1.5 inches of water.

If you have sandy soil, you may want to bump this up to twice per week. However, check how wet the soil is before you apply extra water. You don’t want to cause it to become waterlogged, after all.

Regular Fertilizing

Your grass should be fertilized 2-3 times per year.

Remove Weeds

If you spot weeds, remove them. They will take vital nutrients away from your grass. This can cause yellow spots to appear.

Cut Your Grass Properly

We already told you that you must sharpen your lawnmower blades. You also need to make sure that you don’t cut your grass too short. At the most, you should be taking off around 1/3 of the length of the grass at once. You should be mowing at least once per week during the growing season.

Deal With Pests as Soon As They Appear

We recommend that you get into a regular pest control routine. There are a few different options out there. This can help to tackle pests before they become a real problem for your lawn.

Final Thoughts 

Yellow spots on the grass may look awful, but in most cases they are easy to deal with. The sooner you take action, the quicker the damage can be reversed. A lot of it is down to ensuring that your lawn care schedule is on track e.g. regular watering, cutting, and fertilizing. Dealing with pests, weeds can also help. If you have pets, make sure they are not peeing or pooping on the grass. That will eventually cause yellow spots to appear too.

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