Clear the top growth to an inch or two of solid soil. The curb will ride on top of the ground. 

Use a flat blade shovel to remove surface growth. The edge of the grass is a good way to control the edge of your curb. 

Create the concrete by mixing sand and Portland cement in a 4:1

ratio. 

 After the sand and cement are mixed, add water to the desired consistency. A mixer is not necessary (additional tips on Facebook). 

Press concrete into the trowel, advance the trowel, smooth, and repeat. 

Your wallet thinks it looks great, too. 

Note that curb it yourself sits right on the ground.

This professionally installed curb also sits right on the ground. 

Note that this is also how curbing is installed in freezing climates. 

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