As winter approaches, it's crucial to properly clean and store your urban planter boxes to protect your investment and ensure they're ready for spring planting. Begin by removing all plant material and soil completely. Scrub the boxes thoroughly with a solution of one part vinegar to three parts water, which effectively disinfects without harming plants or the environment. For wooden planters, consider a light sanding to address any rough spots.
After cleaning, ensure your planters are completely dry to prevent mold and mildew growth. Store them in a cool, dry location such as a garage, shed, or covered balcony. If space is limited, stack smaller planters inside larger ones. For planters that must remain outdoors, elevate them slightly with bricks or wooden blocks to prevent water accumulation and potential freezing damage.
This simple winter maintenance routine will significantly extend the life of your urban planters and save you time and money when the next growing season arrives.