Innovative ideas for planters: While the traditional terra cotta clay or metal planters are common materials, so are concrete, stone, and brick. For many homes, using non-traditional materials, such as concrete masonry units or cinderblocks, can still lend itself to a gorgeous display for plants. The open cell inside of the cinderblock enables it to be filled with soil, and then you can plant your favorite plant inside. While the ability for them to be stacked as a retaining wall can have a multifunctional appeal for your patio or deck area, it also brings a fresh look to your yard or patio. Be creative and mix different size units, and alter the face finish when possible. Split face cinderblocks can lend a more rugged and natural aesthetic.