Many African violet plants will display yellow leaves from a lack of enough sunlight. This is generally a result of too much watering or a lack of nutrients. The most common cause of yellowing leaves is poor watering. But lack of nutrients in your soil, as well as other soil-related problems can also result in a yellowing of your leaves.
Certain soil conditions can be responsible for the discoloration of African violets. Certain conditions, such as uneven or very heavy clay, can cause uneven soil compaction. This can greatly accelerate decomposition – resulting in a loss of valuable nutrients that your plant needs to grow healthily. Also, excess salt in the soil can result in the discoloration of leaves as well as other parts of your plant. So, if you are growing African violets, make sure to keep their soil well-balanced.
Another reason why are my African violet leaves turning yellow could be excessive watering. If the soil is too dry, or if the water drains off the plant quickly, it can cause your plant to wilt. Excessive watering can even kill your plant – so make sure that your soil conditions are just right before trying to water your African violets. Additionally, excess salts in the soil can also cause your foliage to turn yellow. So, make sure you don’t have salts in your soil.
How much light green your plant receives is also another cause why are my African violet leaves turning yellow. If your plant gets too much light green, it can reduce photosynthesis. Photosynthesis is the process through which plants convert light into food and oxygen. When this process is impaired, plants tend to starve to death. This is why many African violets are planted in sunny areas; the sunlight will help them grow and produce more flowers.
Finally, a final cause why are my African violets turning yellow can be stem disease. As the name implies, stem disease occurs when a certain portion of the stem gets infected by pathogens. Most often, the affected stem ends up drying up and dying. This results in the plant shutting down its growth and simply not growing again. This disease can be transmitted from one species of plant to another, so you should be very careful if you want to try re-hydrating your plants.
One way to combat the drying effect of stem disease is by providing more sunlight for the plant. When the foliage starts to turn yellow, it is often because there is insufficient light for the plant to absorb. You can increase the amount of light your plant receives by supplementing it with extra light or by rearranging the positioning of your outdoor lights. Place the lights to the highest part of your yard and the lowest part of your garden, where there are likely to be fewer plants competing for sunlight.
Some African violets do not show any signs of yellowing foliage until the middle of their flowering season. If this is the case with your specimen, you should inspect it very carefully before you harvest the plant. Examine it under bright light and take a close look at the underside of its leaves. If you see brown patches or yellow spots, these are probably the result of a fungus that has invaded the foliage and destroyed its nutrients.
Why are African violet leaves turning brown? The answer to that question really depends on which species of African violet flowers in your garden. The majority of African violet flowers are native to the Kalahari Desert region of South Africa, so if you plan on keeping your plant, make sure you plant it in a shady area. If your plant does not have a sunny location to grow in, or if it has a shady area but gets a lot of sun, the roots may become too wet or too exposed to the intense temperatures of summer. This can quickly kill your plant, even if you do not realize it until it is too late.