Depending on the retaining wall’s material, height, and size calling in the pros to help with the job could be a smart move—especially if you are incorporating walls to help prevent erosion. You may also need to obtain a permit from your local government agency for walls above a certain height and specification. Here are 22 garden retaining wall ideas to offer some inspiration. It’s worth noting that timber walls will likely need replacing sooner than more durable stone varieties. When a garden has multiple tiers, think carefully about the plants you choose and where you plant them. Position the taller plants at the back and be aware that the higher levels typically dry quicker. Placing moisture-loving plants in the lower terraces for better results. Carefully select any plants you use in retaining wall beds to be sure they are suitable for use around your pool. You don’t want anything messy that will leave lots of debris in your pool. Plus, they should be ones that can cope with sun and humidity levels. If you are building the pond wall yourself, be aware that loose, natural stones are difficult to stack, and the wall shouldn’t be too high making pond maintenance more of a challenge.