How to Clean Concrete Landscape Blocks? 2 Simple Methods

Concrete landscapes are basically used to hold back the soil and protect the structure. They are exposed to groundwater and hydrostatic pressure forces moisture into the block and create efflorescence. Efflorescence can reduce the aesthetical look and can damage the blocks. 

For this, it’s important to keep clean the concrete landscape blocks. If you are willing to clean your concrete landscape blocks and looking for a proper guideline then you are at the very right place.

The cleaning can be done in two ways and we have discussed them in today’s article. Read on and find out how you can clean your concrete landscape blocks. Let’s begin then.

How to Clean Concrete Landscape Blocks

Methods for Cleaning Concrete Landscape Blocks

There are two ways or methods that can be followed for cleaning concrete landscape blocks, using a cleaning agent, and using a power hose. Here are the methods –

Method 1: Use a Cleaning Agent

There you will find different types of concrete cleaning agents that can be used for cleaning the landscape blocks. 

  • Buy a suitable one for your concrete blocks, prepare the solution according to the manufacturer’s instructions, and then apply the solution to the blocks. 
  • Wait for 10 to 15 minutes and then take a stiff brittle brush, and start scrubbing the block surface. 
  • Lastly, take the garden hose pipe, and rinse off the entire concrete landscape block area. Your job will be done.

NOTE: Avoid using too much water because it will cause excessive efflorescence.

Alternatively, you can use some solutions without water like Scotts Outdoor Cleaner cleaning agent for cleaning the concrete blocks. Spray the cleaning agent on the concrete block, wait for a couple of minutes, clean the surface with a scrub brush, and finally, rinse off the block with water.

Method 2: Use a Power Hose

Another way is using a power hose pipe. With the help of a power hose, concrete blocks can be cleaned quite easily. Just connect the power hose to the water source, set the pressure according to your need, and start spraying on the concrete blocks. The pressure of water will wash away the dust and debris and will provide you with a clean concrete block.

NOTE: Maintain a distance of at least one foot between the power hose nozzle and the concrete block.

Bonus Tips

If there are stubborn stains on the cement blocks then you can use a cleaning solution like white vinegar-water mixture, or bleach-water mixture. Also, you can use the muriatic acid and water mixture as well.

For example, take 1 part of white vinegar with 2 parts of water and prepare the cleaning solutions. Now, spray the solution over the entire cement block surface and wait for 10 to 15 minutes. After that take a brush and start scrubbing, lastly, rinse off the block with water.

Frequently Asked Questions and Answers (FAQs)

How do I clean concrete decorative blocks?

For cleaning concrete decorative blocks, first, prepare a mixture with water-detergent or soap. Now, take a soft brush, soak the brush into the mixture, and start scrubbing the surface. Lastly, rinse off the block with water. 

What is the best chemical to clean dirty concrete?

There are a lot of chemicals available for cleaning mildly solid concrete. Among them, a chemical mixture that is made of bleach, water, and dishwashing liquid can clear mildly soiled concrete very easily. For heavy soils, you can use vinegar and water solutions.


Lastly, cleaning concrete landscape blocks isn’t that hard work to do. Just you will need to follow proper guidelines to get the job done without any issues. Follow the methods and start cleaning your concrete blocks today. If you have any further queries, let us know in the comment box. 

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