When setting up urban planter boxes, a common question arises: do they require a special kind of liner? The answer isn't a simple yes or no—it depends on your specific setup and goals. Liners can help protect wooden boxes from rot, prevent soil from washing out, and control moisture. However, they must allow for proper drainage to avoid waterlogged roots, which can harm plants.
For most urban planters, using a permeable landscape fabric is a smart choice. This material acts as a barrier against weeds and soil loss while letting excess water drain through. Avoid non-porous plastics unless you add ample drainage holes, as stagnant water can lead to root rot. If your planter is placed on surfaces like concrete or wood, a liner becomes more crucial to prevent damage and staining.
In summary, while not always mandatory, a well-chosen liner—such as breathable fabric—enhances durability and plant health. Ensure any liner you use supports effective drainage and suits your urban gardening environment.