Do your garden plants often get yellow leaves? This indicates that your plant is under stress, which is most commonly caused by overwatering, nutrient deficiencies or poor lighting. This causes the root to suffocate or starve, not letting it properly absorb the nutrients from water. You can fix this issue by creating a proper timeline for watering the plants, knowing the needs of a particular plant, as too little or too much water can destroy the plant. Ensure that there is proper drainage of water from the pot to prevent rotting of roots, apply balanced fertilisers, and adjust the light levels according to the needs of the plant. Let’s talk about more things you need to know why this happens and how to fix this issue in this blog.
Common reasons for yellow leaves
- Overwatering and underwatering: This is one of the most common causes of leaf damage, as this can lead to root rot. This causes yellow foliage that feels mushy and can lead to fungal infections. Underwatering is also harmful for plants, as they rely on water for the complete photosynthesis process, leading to dry, yellow leaves, which may fall off.
- Nutrient deficiency: Plants need essential nutrients to make chlorophyll, which makes them green. The lack of nitrogen can lead to yellowing of the leaves, which is first impactful on older leaves. This happens because the plants steal nitrogen from the older leaves to regulate growth. The essential nutrients they require are iron and magnesium.
- Light imbalances: Because of the insufficient light, leaves become yellow because they cannot produce enough energy. Too much light is also harmful; direct sunlight can burn or bleach the leaves to a yellowish colour.
- Pests and disease: The sap-sucking pests, like spider mites or whiteflies, can cause yellow spots on the leaves. Along with this, fungal infections can cause root rot, which in turn can damage the leaves.
- Temperature and stress: Sudden temperature fluctuations, such as sudden cold or heat, can make the leaves turn yellow.
How to fix it
- Adjust watering: Check the soil moisture two to three inches deep. Allow the one to two inches of soil to dry out before you water again. Ensure that pots have drainage holes and do not let plants sit in saucers of standing water. Water deeply and consistently ensures that water reaches the root and ensures that the water is not absorbed dry, as it repels water.
- Correct nutrition: Use a balanced fertiliser for general deficiencies or a nitrogen-rich fertiliser if the leaves are yellow.
- Adjust the sunlight: Move the plants to an area with moderate sunlight that does not fall directly or use LED grow lights for sustainable options. Provide shade during the hottest part of the day.
- Treat pests and disease: Properly inspect the undersides of the plants. Use insecticidal soap or neem oil to prevent pest infestation and improve soil drainage to treat root rot.
- Manage temperature and stress: Move the plants to avoid direct heat and loosen the compressed soil for proper water absorption, which allows roots to breathe.
Conclusion
Yellow leaves are the primary indicators of stress, improper ventilation, pests and unbalanced temperatures. To fix these issues, you should regularly inspect the health of your plant and make the most suitable changes in the care routine of the plant as suggested above. To knock out the nutrient deficiencies, you can use the best fertilisers, and to ensure proper lighting, the most suitable way is to use LED lights. At Bayton Horticulture Centre, we provide you with the most effective fertilisers and LED lights, along with other products, to enhance the overall growth and health of your plant, which is supervised by our expert, Mr. Pardeep.
FAQs
- Are yellow leaves caused by too much sun?
Yes, yellow leaves can be caused by too much direct sunlight, as it causes the leaves to burn. It is especially common for shade-loving plants.
- Can a yellow leaf turn back to green?
No, once a leaf has turned yellow, it cannot be turned back green, as it has lost all of its chlorophyll. It is best to remove the leaf so that the plant can focus on new growth.
