Grass Growing on Concrete

Seeing your garden area being wasted is the last thing you want to happen. You can go for grass growing on concrete to make it look better. Grass growing on concrete helps change the way your garden or pathway looks. While it is true that concrete is not the best place to plant grass, it still is possible and as it provides a good look and a better place for your kids to play.

Grass growing on concrete also expands your garden in a way without much effort. But how do you do that? And is it even safe to do so? Will the grass affect the concrete in any way? Stick with us to find out.

Why Do Grass Grow on Concrete?

Not always, but often, the grass can not grow on concrete on its own, it is manually put there using different methods and by keeping important factors in mind. You can grow grass on concrete, as it is quite beneficial for a short time but it is not ideal for the long term.

But to make all this a success, using large rocks of concrete is not a good idea. The whole system will perform really well if you use smaller concrete rocks. But how will the grass grow on concrete?

Grass will Grow through Cracks:

Concrete cracks are actually what the grass needs to grow on, as they have all the required elements and rich soil for the growth of grass. The cracks provide a suitable surrounding for the grass, by keeping it moist and warm, those nutrients are found more in those concrete cracks than in any other place in the garden.

Grass will grow when there is soil and nutrients present:

As you all know that every single life on earth requires some special nutrients to survive, as does the grass. Grass growing on concrete is helped by these nutrients to survive and expand.

A rich soil possesses all the nutrients for grass growth, so if your garden soil is too good, then you might face all this. Now, it varies that how will the grass affect you and the pathway.

How to Prevent Grass From Growing on Concrete?

Having a suitable environment makes it easier for the grass growth on the concrete, but don’t lose hope. Because you can take several solid steps to prevent grass from growing on concrete.

Try doing it at the right time. I do accept that any time is the right time for this process in the whole year, but the ideal time would be from May to November.

That is when the grass growth is at its highest, making it slightly easy for herbicides to be absorbed rapidly, by doing this you will see an actual decline in grass growth.

Secondly, prior to beginning the grass removal process, make sure to put all the things aside that you don’t want to be affected by the chemicals.

Finally, now you can start using Herbicides, it is the widely used method of stopping unwanted grass growth. Herbicides slow down the growth process by killing the grasses coming out of concrete cracks. Be careful though, as these poisonous chemicals must be used under proper and expert supervision.

But, considering that the herbicide method can be harmful sometimes, there are ecologically good methods to stop the grass growth on concrete.

The simplest of them all would be using hot water. Pour extremely hot water right from the kettle on the grass. The extreme heat will be unbearable for the grass and its roots, so they will eventually start to die, even the grassroots. It is going to take more than one try to receive the desired outcome out of it, but you would have to keep up until then.

Or the other option is vinegar because it is quite acidic in nature so you would only have to mix vinegar with salt, lemonade, and soap into a spray and spray it over the area of grass you want to be reduced or gone.

That leaves us to our final and simplest option, the baking soda. If there is only some specific grass that you want to reduce, just throw some of it on the grass, or if it is inside the crack bottoms, spread the soda from all sides and push it in the cracks with a broom or something.

Or, If you just want those unnecessary grass growing on concrete, gone, and you don’t really want to use the above-mentioned methods, then what equipment is better than your own hands? Just pull the soul out of those grass by using your hand force, and then it is unlikely that the grass will return after such defeat.

Can you Lay Real Grass on Concrete?

Yes, you can. First of all, fill all the gaps and cracks of the concrete. They can complicate the grass growth. Pour the soil over the concrete at least 3 to 5 inches of soil is needed by the grassroots to grow rapidly.

If there are any holes in the concrete, use more soil to fill them up so that there is no stone left unturned. Now you will have to use the fertilizing seeds on the soil to accelerate the grass growth. Then mix the fertilizer and the soil very well.

Then, try planting a seed of grass that can grow almost anywhere and requires low maintenance. Spread the fertilizer seeds with your hands, so that the seeds can help in the growth of grass in all of your garden. Be careful with the amount that it should neither be too much nor too less.

Try mixing the seeds with the upper parts of the soil. By doing this the process of grass growing on concrete will continue with success. Water it every day, but not too much because you should remember that the grass is growing on concrete, not on actual soil.

Minimal Soil Depth for Grass on Concrete:

The ideal soil depth for grass growing on concrete is 4 to 5 inches. Also, the soil should be rich in nature, meaning that it should contain all the needed nutrients for the grass to grow properly.

Will Grass Damage Concrete?

Yes, the grass does have a negative effect on the concrete. The grass after being on the concrete for a long time can result in cement poisoning. Meaning that the grass will stain the concrete quite badly.

Grass will Stain Concrete with soil present:

With soil and the nutrients, the grass growing on concrete stains and erodes your beautiful rocks, and sooner or later, the concrete will face cement poisoning and this affects the quality of the concrete severely.


If you really want the grass growing on concrete, it is absolutely okay, but excess of anything is bad, so growing grass on concrete is a good thing but for the short term. It is not sustainable.

Get ready for the efforts that this process requires if you have decided to grow the grass on your concrete, as everything needs maintenance. So only do it when you are ready.

Despite all that, it is not an impossible thing to do and neither is this rocket science. Just follow the important instructions and you are all good. Thank you.

Leave a Comment