Brick patios and walkways look great in any yard, but they require regular maintenance. One of the most common problems associated with brick on the ground is grass sprouting up between the bricks. No matter how closely the bricks are laid to one other, grass seems to find a way to poke through. Several simple, inexpensive solutions are available for removing unwanted grass. These techniques can be used on their own or you can do all of them together for quick results.
Fill a tea kettle or pan with water, put it on the stove and bring to a full boil. Pour the boiling water on the grass immediately. The hot water is generally enough to kill most of the grass.
Fill an empty spray bottle 1/4 full with white vinegar. Fill the bottle the rest of the way with water and add a couple drops of dish soap. Shake the bottle to mix the ingredients thoroughly, then spray directly on the grass.
Cover grassy areas with a thin layer of rock salt. Salt naturally dehydrates the grass, which kills it eventually. Do not let the salt get in your soil as it can cause damage that takes years to repair.
Cover the grassy bricks with a tarp for three weeks. If the grass is deprived of sunlight, it will die.