Raised flower beds are easy to plant and maintain. The soil in a raised flower bed warms up earlier in the spring, drains faster, remains looser and is easier to work. Fewer weeds grow in raised flower beds and weeding is easier because you do not have to bend over as far. You can construct a raised flower bed out of one or more layers of cement cinder blocks to accommodate the plants' and the gardener's needs. A raised flower bed constructed of blocks is durable and easy to build.
Decide how big you want the raised flower bed and where you want to locate it. A width of 4 feet provides easy access for working from both sides of the bed.
Remove the grass and weeds from the selected area with a hoe and rake. Use the rake to make a smooth, level outline of the bed wide enough for the blocks. You can also mow the grass and weeds as low as possible, rake a level surface for the blocks, and cover the area with porous black landscape cloth.
Lay the blocks end to end, with the holes vertical, in the leveled outline of the bed to form a box-shaped area. Offset subsequent layers of blocks for stability. Continue stacking offset layers of blocks until the wall is as high as you want it. If the wall is more than 2 feet high, you will need to use mortar between the blocks to hold them in place.
Fill the raised flower bed with topsoil or potting soil and any compost or other amendments you want to use.