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How to help a geranium whose leaves turn red? Why is this happening?

How to help a geranium whose leaves turn red? Why is this happening?



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Reddening of the leaves in geraniums is a fairly common problem and worries many, especially not yet experienced, lovers of this plant. Many factors can lead to such a change in the color of the leaves. The reasons can be both plant diseases and improper care.

This article discusses each of these reasons in detail. In addition, it tells what to do if the leaves of the plant turn red, and how to properly care for geraniums in order to prevent this phenomenon.

Why does the leaves of a houseplant turn red: the main reasons

There are several factors that lead to reddening of the leaf plates in geraniums. That is why its leaves in summer or at other times change color to red along the edges or on the back, and if you do not take any measures, then they dry:

  1. Waterlogging... Geranium is a drought-resistant crop, so there is no need to moisturize it abundantly. In this case, red leaves indicate a root infection. Waterlogging lowers the plant's immunity, thereby exposing it to other diseases.
  2. Violation of the temperature regime. If the leaves begin to dry at the edges and become covered with red spots, this indicates hypothermia of the culture. Eventually, the leaves may fall off completely.
  3. Lack of nutrients. Thick pigmentation on the plates can appear due to the increased pH level of the soil. The first signs of a deficiency of useful elements will be noticeable only after 4-5 weeks. Lack of nitrogen appears in the lower layers of leaves. In this case, the plates are covered with small spots, and their edges are wrapped.

    Lack of phosphorus is noticeable on the back of the leaf - they turn completely red. Gradually, the spots will turn brown, and even later, the foliage will completely dry out. Pinkish pigmentation indicates an insufficient amount of zinc.

  4. Oversupply of fertilizers. An excessive amount of feeding is also harmful to geraniums, as well as their deficiency.
  5. Sunburn. In this case, not only the foliage will turn red, but also the escape. Moreover, older leaves are more sensitive to bright light.
  6. The defeat of aphids. The appearance of the pest is noticeable by the spots on the back of the foliage.

What to do with redness?

After it was possible to understand why the foliage of the plant turned red and began to dry, you need to decide what to do.

  1. To begin with, flower growers recommend transplanting geraniums to update the root system and soil. This procedure is carried out taking into account some recommendations:
    • Purchase a ready-made substrate for indoor plants. You can make the soil mixture yourself. To do this, take sod land, humus and sand (in a ratio of 8: 2: 1).
    • Disinfect the soil before planting: place in an oven preheated to 100 degrees for half an hour.
    • The diameter of the pot should be 2-3 cm larger than the volume of the root system.

    Reference! After removing the flower, carefully examine the root system and remove the affected and dry parts.

  2. Next, you need to pay attention to the climatic conditions of the room in which the plant is located.

    Control the air temperature. Optimal conditions are + 18- + 24 degrees. It is also important to remove the flower pot - direct sunlight is contraindicated for geraniums. If it is not possible to remove the flowerpot from the windowsill, cover the flowers with white paper (you can use reflective foil).

  3. Apply top dressing in a timely manner, but don't overdo it. It will be enough twice a month. It is advisable to use ready-made complex mixtures for this.
  4. Also, do not use filtered water to moisten the soil. The most suitable option is settled water or rainwater. The watering regime is an important condition for the full development of geraniums without diseases (read more about diseases and pests here). You need to water the plant 2 times a week and make sure that the top 2-3 cm have time to dry.

    Attention! Check for a drainage layer in the flowerpot. If it is absent, water will constantly accumulate, due to which the roots will begin to rot, as well as the leaves will turn red and dry.

  5. When aphids are damaged, insecticides are used. They are used according to the instructions on the package. For the complete destruction of the pest, you need to carry out 2-3 treatments with a break of 5-7 days.

Prevention

Of course, preventive measures will protect the culture from the appearance of redness on the leaves. Prevention measures are as follows:

  1. Repot young crops (up to 3 years old) every year in early spring. Adult plants need only one renewal every two years.
  2. Select a pot that is suitable in size - the root system should not be cramped, but at the same time not very loose (the pot is 2 cm larger than the rhizomes).
  3. In winter, arrange a rest for the flower. To do this, the frequency of watering and feeding is reduced, and the pot is transferred to a darkened place with a temperature of 17-20 degrees above zero.
  4. From the beginning of the flowering geranium, provide it with potassium and phosphorus feeding every two weeks.
  5. With the onset of spring, prune and pinch the bush.
  6. Important! During the procedure, pay attention to all parts of the plant, removing dry and damaged leaves and shoots.

  7. After transplanting, do not feed geraniums for the first month. In early autumn, reduce the frequency of fertilization to once a month.

Geranium is an unpretentious plant and does not require special care. But the main aspects of growing still need to be considered and followed. With proper care, the culture will delight the grower with rich greenery and lush flowering.

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