Knowing when to refresh the soil in your planter box is crucial for plant health. Over time, soil degrades, losing structure and nutrients. Watch for these key signs. First, if water pools on the surface or drains extremely slowly, your soil is likely compacted and needs replacement. Second, if the soil has shrunk significantly or pulls away from the sides of the box, it has lost volume and effectiveness. Third, a white, crusty buildup on the soil surface indicates harmful salt and mineral deposits from fertilizers and water. Fourth, if your plants are stunted, discolored, or wilting despite proper care, exhausted soil is often the culprit. Finally, if previous plants suffered from recurring disease or pest issues, replacing the soil helps break the cycle. For best results, replace planter box soil at least every 1-2 growing seasons to ensure your plants have a fertile, well-aerated foundation.
How do I know when it's time to replace the soil in my planter box?
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