Keeping your urban planter box clean between growing seasons is crucial for plant health. Start by removing all old plant debris and soil. Scrub the empty box thoroughly with a brush and a solution of mild dish soap and warm water to remove dirt and algae. For sanitizing, which is key to killing pathogens, prepare a solution of one part household bleach to nine parts water. Apply this solution to all interior surfaces, let it sit for 10-15 minutes, then rinse the box completely with clean water and allow it to air dry fully in the sun. This process eliminates pests and diseases, giving your next season's plants a fresh, healthy start. Always wear gloves and work in a well-ventilated area when using bleach.
What's the best way to clean and sanitize an urban planter box between growing seasons?
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