Knowing when to repot or refresh the soil in your urban planter box is key to keeping your plants thriving. Here are five clear signs it's time for a change. First, check the roots. If you see roots circling the surface, growing out of drainage holes, or the plant lifts easily from the pot, it's root-bound and needs more space. Second, watch for slowed or stunted growth, even during the growing season. Third, if water pools on the surface or drains through instantly, the soil structure has broken down. Fourth, if you notice a white crusty buildup on the soil or container edges, it's a sign of salt and mineral accumulation from fertilizers and water. Finally, if your plant looks consistently unhappy—yellowing leaves, wilting despite watering—or it's been over a year since the last refresh, the soil is likely depleted of nutrients. For a refresh, gently replace the top few inches of old soil with fresh, nutrient-rich mix. For repotting, choose a container 1-2 inches larger in diameter, use fresh potting mix, and gently loosen the root ball before placing it in its new home. Your plants will thank you with renewed vigor.
How do I know when it's time to repot or refresh the soil in my urban planter box?
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