Why Plant Leaves Turn Yellow and How to Fix Them

Plant leaves often turn yellow, whether they are indoor or outdoor plants. Seeing the appearance of yellow spots on plant leaves is usually, in most cases, a sign that something negative is affecting plant growth and development. Let’s see how to solve this problem when your plants show yellow leaves.

Yellow leaves on plants: causes and remedies

Although it is obvious, it is important to remember that yellow leaves on plants are not always a warning sign. It is essential to know the natural cycle of plants that adorn gardens and interiors and to know that some lose their leaves in summer or fall. Leaves begin to yellow, eventually drying out and falling off, but this is completely normal in deciduous plants. If you know your plants, you will know not to worry, because those fallen leaves will give way to new leaves the following spring. But let’s look at the main causes that lead to yellowing leaves on our plants.

  • Improper irrigation

This is one of the most common causes, especially when plant leaves yellow at the apex. Each plant has very specific water needs, so there could be yellow leaves due to over- or under-watering. If your plant has yellow leaves with a dry, rough texture, it urgently requires water.

  • Poor water drainage

Sometimes the problem is not in the amount of water we supply to the plants, but in inefficient drainage such as the accumulation of water la at the base of the pot, which can cause the roots to weaken and even begin to rot, causing the leaves to gradually yellow and die. If you detect that the pot or substrate does not allow excess water to escape when watering the plant, you will have to replace it with others. It is necessary to know the needs of the plant species we have in the house to know whether they need more or less water in the soil and, therefore, a substrate that drains more or less, and/or a pot with more holes or less.

  • Wrong position and lighting

Leaves that begin to yellow or tend to turn progressively brown may be a clear symptom that the location where you have placed that plant is not the most suitable. There are plants that cannot tolerate direct exposure to the sun because the sun’s rays burn the leaves, while others need it more for their survival, and there are also those that need to be in semi-shade or even shady environments in order to grow. The higher or lower brightness of the environment can influence the presence of yellow spots on the leaves of indoor and outdoor plants. Therefore, check the needs of the species you have and how much direct sunlight it needs, then if necessary, you can move it to a better place so that its leaves stop yellowing and burning.

  • Substrate lacking in nutrients

This is another likely cause of yellow leaves on plants. A substrate with adequate nutrients for the type of plant we have is essential to keep them healthy and their characteristic green. Lack of iron, phosphorus or nitrogen in the soil on which the plant feeds could be behind the worrisome yellowing of the leaves.

  • Diseases

The presence of fungi such as mildew, diseases such as rust, or insects and pests can cause plant leaves to turn yellow or spots to appear on them.

  • Extreme temperatures and drafts

Other possible causes of yellow leaves can be low temperatures or frost and frequent temperature changes and drafts. The problem occurs because in these situations the plant suffers stress to adapt, and this is reflected in the yellowing of its leaves. If you see that your plant is in a draft area or very close to an air conditioner or radiator, move it and put it in a more stable location. Knowing the characteristics of your plants and detecting over time the cause that causes their leaves to yellow is essential to restoring their health and keeping them beautiful and in good condition. For each specific problem you have effective remedies.

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