Keeping your urban planter boxes thriving requires the right balance of sunlight. While essential for growth, too much intense, direct sun can severely damage your plants. Fortunately, your plants will show clear distress signals if they are getting sunburned.
The most immediate sign is wilting. If you see your plants looking droopy and limp during the hottest part of the afternoon, it’s a cry for help. The soil will also feel bone dry to the touch, even shortly after watering.
Next, examine the leaves. Sun damage often appears as scorched, crispy edges or brown, yellow, or white patches on the surface of the leaves. This is essentially a plant sunburn. In severe cases, the leaves may curl inwards or become brittle and fall off. You might also notice stunted growth, where new leaves are smaller than usual or the plant stops growing altogether.
If you spot these symptoms, don't panic. The solution is often simple. Consider moving your planter boxes to a location that receives afternoon shade. If moving them isn't possible, installing a shade cloth can provide immediate relief during peak sun hours. Finally, adjust your watering schedule to early morning, ensuring the soil is consistently moist but not waterlogged. By recognizing these signs early, you can take action and help your urban garden recover and flourish.