Will Pressure Washing with Bleach Kill Grass?

When it comes to the outside of your home it is completely understandable for you to want to make sure it looks as nice as it possibly can. The way a home looks can be seen as a reflection of yourself.

So it is only natural for you to want to use whatever you can that will help make it look the best whether that is by using cleaning supplies or other methods.

Though when you go to pressure wash your house, there is bound to be some kind of runoff that will get on your yard, plants, and other possible valued items you have lying around.

When you decide that you want to pressure wash your house, it is wise that you know the proper precautions to take and if you are doing any damage to the plants nearby your home.

Picture of dead grass and a chalk outline of body on the dead grass

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Are the Chemicals Killing Grass and Other Plants?

The main focus of pressure washing your house is to get rid of all the glut and mould that is building upon the walls of your house. It will make your house look as good as new.

While the chemicals in pressure washing are specifically made to not harm any animals or plants, there still is a chance that the bleach or any of the other chemicals present do kill some of the grass or other plants you have around your house.

What Effects Does Bleach Have?

When you decide to pressure wash using bleach it is mainly aimed at killing small organisms like mould and mildew. Usually what you use will be diluted to a 3:1 water to bleach ratio.

So while your house is being pressure washed, the runoff into your yard and garden will turn into salts as the bleach starts to break down.

High salinity in your garden and yard can lead to plant death since it will make it harder for the plant to retain water since it is struggling to begin with. A big thing you can do to make sure that either your grass or yard is not damaged by any bleach being used to clean your house is to make sure your grass and yard are properly fed beforehand.

If you do this, when the bleach runoff seeps into your yard and garden, it will be even more diluted when it gets there and will have even less than an effect on the plants that it will wind up touching.

Once your pressure wash is completed, it is a smart move to do another thorough wash so that you are able to get out all the remaining leftover residue in your yard or garden.

What Kind of Bleach Should You Use?

If bleach is the main source you are going to use when you are pressure washing your house, you should probably opt for using oxygen bleach over chlorine bleach.  The former goes easier on foliage.

While it may be easier on the foliage, you will still want to protect your plants as much as you possibly can. A lot of experts suggest going out and just covering the parts of your yard or the plants you want to keep protected from the bleach.

If you are unable to cover or move any of the plants, as stated above, you are going to want to give them a thorough way before and after to make sure you do not ruin them even more.

When you go to pressure wash your house, it is vital that you use the right bleach so you give your grass and plants the best chance to survive.

House Driveway and the Gate Pressure Washing by Caucasian Men

Other Remedies For Pressure Washing Your Home

After reading the above information, you may now be a bit hesitant to use bleach when you go to pressure watch your house. You may want to know what other options you have to make the decision to clean your house and have it looking as good as new.

But as there are with all options, you will need to be able to weigh the pros against the cons so you can make the best decision for both cleaning your house and the health of your grass and plants.

Can You Use Detergents?

The short answer to this question is yes, you are able to pressure wash using detergents. If your home is going to be washed with simple detergents, these biodegradable ingredients are usually diluted to a 10:1 water to bleach ratio.

Despite the fact that it is very diluted, if you let the runoff remain on foliage, you will notice that your grass or any other plants touched by the chemical, will start to develop some brown spots on them.

As discussed earlier, if you take the necessary precautions by watering before and after, you should be able to keep your grass and plants as healthy as you possibly can.

But remember to be as thorough as you can be, cause even with the tiniest bit of detergent left on your plants, there is a high chance that they will die.

Watch Out for Salient

If your house has natural wooden siding, usually that means you must use a salient post pressure washing to preserve the natural grain and makeup of the wood.

If this is something you have to use, be very careful because salients are much more harmful to your grass or plants than either detergents or bleach. So before you use the salients make sure you cover all nearby plants or grass and make sure that they are secure.

Most times, you will not be able to wash off the foliage and your grass and plants will eventually die.

In the end, while it is very important to make sure your house looks as new and as clean as it possibly can, it will all be a moot point if the plants and grass that surround your house are all either dead or brown.

So you need to know that when you go to pressure wash your house, whether it is with bleach, detergent, or salient, that if you do not take the necessary steps and precautions, your yard will not look as good as it once did.

Even though it may take more time than you want, remember to make sure that you cover the grass or plants you want to be protected from the potential runoff. You do not want to have your grass or plants covered for too long since that can kill them too.

Only cover the parts you are currently working on to clean, especially if the house you are cleaning is a large one.

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Final Thoughts

So take your time, clean your house, and keep the grass and plants that help make your home a home, alive and flourishing as long as they should. Even though bleach does kill grass, it is by far the safest option of the possible cleaning materials you can use.

Bleach can kill your grass, but at the end of the day, the biggest culprit that will kill your grass is you, if you do not take the precautions listed above seriously.

Do not be the reason your house looks good but your yard looks bad!