A brick planter not only adds to the appearance of your landscaping, it also provides a better growing area for plants in locations where soil doesn't drain well. However, just because you plan to build a brick planter, doesn't mean it has to be a basic square or rectangle. It will take a little patience but a curved wall is possible to create, adding style to an otherwise basic design.
Lay out the bricks to figure out your flower bed wall design. Keep a 1/2 inch space between the bricks as you place them to allow room for the mortar. As you begin an inward curve, place the bricks so the inside corners are closer than the outside corners. For the areas where you want the wall to curve outward, place the bricks so the outside corners are closer. Angle each brick in the curve only slightly to create an gradual curve in the wall.
Mark the ground where the bricks are located by pushing the edge of a flat blade shovel into the soil along the outer edge of the bricks. Remove the bricks once the path is marked.
Dig a trench following the marked outline that you created. Dig the trench the same width as the brick and 6 inches deep.
Fill the trench with 2 inches of gravel, and pack it down.
Mix up a container of cement following the package directions. Pour the cement into the trench for a 3-inch thickness. Let the cement harden for a full day.
Add mortar mix to a container, and follow the directions for adding water. It should be consistency of a really thick milkshake. If you ball it in your hand, it should hold its shape for a short while before spreading.
Spread mortar with a trowel along the concrete footing for 2 feet.
Place bricks on the mortar, pressing in slightly to ensure the bottom of the brick is completely set in mortar. Spread mortar 1/2-inch thick between the bricks to connect them to each other. Use a level on top of the bricks in the row to ensure they are even.
Set bricks in the curve in the same way you did when you were laying down the outline. Add a little extra mortar to the ends of the brick along the corners that are spread further apart.
Angle the ends of the wall in toward a structure or into the soil if you aren't connecting it back to itself.
Start a second row similar to the first, staggering the seams to create a more sturdy wall.
Skim the mortar lines with a jointer after it starts to set up while it is still pliable. The jointer scrapes off excess mortar and creates an indention in the material for a more finished look.