Why do geranium leaves curl and how to solve the problem?

Why do geranium leaves curl and how to solve the problem?

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Geranium is a popular and beautiful plant. Native to Africa, it's no surprise that this plant is very drought tolerant and easy to care for.

However, foliage withers, changes color due to pests, disease, nutritional deficiencies. In some cases, the condition of the flower may indicate its disease, which is associated with a violation of the rules of care.

From the article you will learn how to determine what it lacks by the appearance of the leaves of a house plant. This will help you further avoid the health problems of indoor geraniums.

Why do the leaves of the indoor flower fold: the main reasons

There are several main reasons why the leaves of a plant curl inward:

  1. Aphid. One of the most common reasons geranium leaves curl is due to aphid infestation. Aphids dehydrate the plant and cause any new and existing sprout to curl. Pests also transmit viruses from plant to plant, which can lead to stunted growth. As the aphids feed, they release a sticky substance known as honeydew, which can contain black sooty mold.
  2. Lack of light. Lack of light causes not only drying out of leaves and new shoots, but also a slowdown in growth, as well as a lack of flowering. The room with room geraniums should be well ventilated and light enough.
  3. Lack of moisture. Despite the fact that geranium is a drought-resistant plant, it needs a certain amount of moisture, namely: in a warm period, the flower is watered every other day; from autumn to early spring, during the dormant period, water the plant 1-2 times a week as needed, if the soil is 1 cm deep.
  4. Excessive moisture or poor drainage. The leaves wilt, brown spots appear on their tips, eventually they turn yellow and fall off, growth is slow, the roots rot (about why indoor geranium dries and what to do if the leaves turn yellow at the edges or completely and the buds wither, find out here. and about what to do if geranium has spots on the leaves, read here). When flowering, you need more frequent watering, but avoid excessive moisture. The plant does not need to spray the leaves, this procedure is only necessary for diseases. In winter, soil moisture should not be abundant.
  5. The air temperature is too high. The stems elongate and become thinner, despite proper lighting, older leaves wilt even if they have enough moisture and eventually turn yellow-brown. When the room is too hot, avoid direct sunlight on the plant in summer or remove it from heat sources in winter. Geranium should grow in a room where the air temperature does not exceed 15 ° C.
  6. Excessive accumulation of salts in the soil due to alkaline water. The leaves turn yellow-brown, like in autumn, and fall off, a white crust forms on the soil surface (about why geranium leaves and flowers fall off, greenery turns black, shrinks or does not grow, what to do, find out here). To avoid this, let the water stand for 24 hours before watering.

Viruses can be responsible for the wilting of geranium leaves, which usually carry other plants or infect the soil mixture.

Attention! To eliminate the risk of soil contamination, it is necessary to sterilize the soil during geranium transplantation. The most dangerous are plant nematodes.

One of the problems with geranium leaves is curling. Read about what to do if the leaves of a room geranium turn white, and why this happens.

What to do?

The above signs of curling geranium leaves can be used to diagnose and find out the specific cause of these troubles. In accordance with the established reason, the necessary measures are taken to save the plant.

Humidity test

Geranium tolerates drier soil than excess moisture... This is why pots must be well drained and retain little moisture.

Geraniums cannot withstand overcrowded saucers for long. Otherwise, the flower plant can get sick from waterlogging.

Always water the flower on top of the soil, and then drain off any excess. If this condition is not met, the geranium leaves will continue to dry. If there is a lack of moisture, increase the amount of watering the plant.


Geranium loves the sun, but its influence shouldn't be too strong. When placed in places where the light is very bright, geranium leaves turn yellow-red, and the old ones are affected first of all (how to help geranium, whose leaves turn red, is described here). Place indoor plants where they will have shade in the afternoon when sunlight is most intense.

Reference! In the absence of light, increase the amount of light at the first sign of fading. Reduce the room temperature by 3 ° C. Reduce watering and stop feeding.

Top dressing

The fast-growing geranium has small root systems that are vulnerable to phosphorus and trace element deficiencies. Therefore, it is necessary to feed the plant with a liquid fertilizer with a high phosphorus content every two weeks during the growing season.

For example, a tablespoon of instant fertilizer should be diluted with 3 liters of water to compensate for nutrient deficiencies and stimulate proliferation. Be sure to remove damaged leaves to prevent disease outbreaks (read more about diseases and pests of geraniums here).

What kind of prevention is needed?

  1. Water your soil-grown plants only when the topsoil is dry. Make sure excess water drains off the plant roots quickly. Do not put small plants in large containers because the soil will contain additional moisture that the roots cannot absorb.
  2. Even if you are using a fertilizer with a high potassium content, geraniums may not completely absorb it because the pH of the nutrient solution is too high. The pH should be 6.0-7.0.
  3. Colder temperatures and sudden changes in temperature can hinder the ability of geraniums to absorb phosphorus. Make sure the temperature is stable.
  4. If the plant is infested with aphids, use the insecticidal soap spray twice - once for the first application and then after 5-7 days. Check the lower leaves every week to catch any new infestations. Another common natural alternative to insecticides is the use of neem oil. This oil is applied to plants and provides a natural barrier against aphids.

If you carefully follow all the care recommendations, you should not have a question of why the leaves of the geranium are drying. Of course, plants are not immune from possible diseases, but if you take care of geraniums properly, it will definitely delight you with a beautiful and pleasant flowering.

Watch the video: How to: Stop Leggy Seedlings Useful Tips u0026 Step by Step Guide (May 2022).