Contents
Luxurious and non-capricious clematis is gaining more and more recognition from flower growers, but, unfortunately, like all living things, the flower sometimes gets sick, and the first alarm signal is that the leaves of clematis turn yellow. To correct the situation and save your pet, you need to understand what happened to the flower, and how to help him, so that he will continue to please with bright colors. After all, even when the flowering stage is over, clematis continues to perform a decorative function, thanks to the dense green foliage.
Reasons why clematis turns yellow
There can be several reasons why clematis feels discomfort:
- Violations of the rules of planting a flower.
- Irrigation failure.
- Nutrient problems.
- Diseases.
- Pests.
It happens that they combine in various combinations and attack the flower together, but there is no need to despair, everything is fixable and curable. By adhering to simple rules, clematis can be quickly cured of ailments.
Violation of the rules of landing and leaving
If clematis turns yellow, first of all you need to make sure that no gross mistakes were made when planting the flower, or that there were no changes in the surrounding conditions over time. Landing is done in mid-spring or early autumn, in a carefully selected place. Merciless sunlight, however, as well as an excessively thick shadow, are unfavorable for clematis. If a spring planting of a flower occurs, be sure to install a support nearby, because clematis is a climbing plant. During the autumn planting, it must be covered with foliage or other insulating materials to protect it from frost.
Everything was done correctly, they safely got rid of the unwanted neighborhood that creates shading, but the problem remained – the leaves of clematis still turn yellow. Perhaps the point is moisture, its excess, as well as its deficiency, can harm the flower. Most of all, clematis needs watering in spring, when new shoots appear on the flower, and in summer, because it needs strength to grow and bloom.
Due to the lack of the right amount of water, the foliage overheats, which leads to starvation and weakening of the flower, and it cannot resist disease. Then the tips of the leaves dry in clematis, the size of the flowers decreases, and their number is greatly reduced. In the middle lane, the norm of watering is considered once a week, in the southern territories – much more often.
Loosening is another important technique in caring for a flower. In order for moisture to linger in the ground, and to prevent its rapid evaporation, the topsoil must be loosened, which will reduce the number of irrigations.
And do not forget about mulching, that is, applying a protective layer of material to the surface of the earth above the root system of the flower. Semi-rotted manure sprinkled with peat is best suited. You can also use a mixture of sand and ash, in proportions of 10:1. This prevents the possible spread of the fungus in the ground.
Fertilizer shortage
Despite the right place and care, the situation has not improved, and clematis are still not pleasing to the eye, and the leaves still turn yellow? Then you need to think about feeding the flower. After all, every year clematis renews shoots, and spends a lot of energy on long flowering. For this, mineral fertilizers are recommended.
The flower needs to be nourished by 16 elements, but those that make you wonder why the leaves of clematis dry are less – only seven:
- Magnesium.
- Sulfur.
- Nitrogen.
- Iron.
- Manganese.
- Zinc.
- Copper.
Lack of magnesium provokes the appearance of small spots at first, as they grow, the tips of the leaves dry in clematis and twist upwards. This happens if the bush grows on sandy soil, at the end of summer after flowering, weakening the flower. To avoid this, magnesium sulfate is used for prevention, which helps a lot, even if the leaves of clematis are already drying.
When young leaves begin to turn yellow, and spots appear closer to the edges, this indicates that clematis is experiencing a sulfur deficiency, which is easily replenished if calcium or ammonium sulfate is used to feed the flower.
Do not forget about fertilizer with peat, humus, manure, thanks to which the flower receives sufficient nitrogen. Without it, the leaves turn yellow, with a slight reddish tinge. In spring, clematis can be fertilized with calcium or ammonium nitrate. They also resort to such a tool as urea.
When yellowing begins at the top of the clematis and gradually descends, leaving dark green veins on the leaves, this is a signal of iron deficiency. If this happens, then the flower is located on the soil, which contains a large amount of calcium.
Sometimes this can be observed in the spring, when the root system of clematis, due to insufficiently warm temperatures, poorly performs its functions. In this case, it can be expected that the phenomenon will pass by itself as the soil warms up, and, accordingly, the roots of the flower. This also happens on limestone soil.
To remedy the situation, fertilizers are applied to acidify the soil. You can use a solution of sulfuric acid, dilute ten milligrams in ten liters of water, or use iron chelate.
Similar symptoms appear when clematis feels a lack of manganese, only the foliage on the flower turns yellow at the same time. In this case, manganese sulfate will help.
In order not to puzzle over why clematis dries up, it must be fed with zinc sulfate. After all, the lack of this important element that takes part in photosynthesis leads to yellowing of the leaves of the flower. This happens with excessive liming of the soil.
The lack of copper, which appears when using excessive doses of humus or fresh manure, also adversely affects the growth of clematis. The flower begins to turn yellow due to metabolic disorders, in order to fix it, copper sulfate is used.
Fungal diseases of the flower
The main enemies of the flower, often answering the perplexed question of a caring gardener, why clematis withered, these are fungal diseases. They are diverse, act differently, but the result is the same. Despite watering, top dressing, various fertilizers, clematis withers, the leaves turn yellow. And if the cause is not recognized in time, the flower dies.
There are several types of diseases provoked by fungi:
- Rust.
- Spots on leaves.
- Necrosis.
- Wilt.
rust on clematis
Yellow-brown spots and growths on clematis leaves can be seen already in early spring. Gradually they dry up, while new leaves grow, undergoing the sad fate of their predecessors. Rust does not kill clematis immediately, it can overwinter, and in the spring the disease will spread and destroy the flower.
To protect him from such a fate, in the fall the stems are cut to the very root. Of course, this leads to the fact that there will be no flowering next year, but it is better to wait a bit, and, after a year, enjoy beautiful flowers again than to let the clematis die. Together with diseased shoots, weeds surrounding the flower must be removed, as they can later become a source of infection. The collected raw materials are incinerated.
It is good when the disease is noticed in time. This makes it possible to cure the plant faster. As soon as the first spots appear, the parts of clematis on which they arose are cut off and destroyed, and the flower is treated with oxychome, polychome, 2% solution of Bordeaux mixture or copper oxychloride.
Spots on the leaves
If clematis leaves dry up, the process begins with the appearance of small spots that quickly spread throughout the flower – this is the fault of pathogens of fungal diseases. There are many types of them, and it is not always possible to recognize the culprit. Sometimes they join forces and parasitize clematis together. Fungi cause spots of various shapes at different times of the year, but this does not change the essence of the matter.
There are several types of them, they are recognized by color:
- Ascochitosis. The appearance of dark brown spots on the surface of the leaves.
- Cylindrosporium. Ocher-yellow spots.
- Septoria. Grayish spots with reddish edging.
Only one thing pleases in this situation, they die from the same preparations containing copper. For prevention in autumn and early spring, clematis is treated with a one percent solution of copper or iron sulfate, and in the summer, Bordeaux mixture and its analogues are used for these purposes.
Necrosis
This disease is also caused by a fungus. Its name saprotroph refers to the genus Alternaria. It is quite harmless, appears in autumn, lives on old, dying leaves of a flower. But sometimes it is overly activated, then young leaves, shoots dry in clematis and the question arises – what to do? You just need to stop it in time, for this the affected parts of clematis are torn off (which you should not forget to burn), and the flower is treated with products containing copper.
Clematis wilting (wilt)
Another disease that is caused by a harmful soil fungus. There are several species of them, and they parasitize on the roots of clematis. A fungus belonging to the genus Verticillium and Fusarium appear approximately the same. Making their way from the soil to the root system, they block the access of juices to the stems of the flower. Another of their brothers from the genus Koniotirum, acting in the same way, but located on the ground part of clematis, on shoots, immediately above the ground.
Sharp winter temperature drops can lead to the same unhappy result. As soon as the first signs of clematis withering appeared, you need to pour a 0,2% solution of foundationazole a couple of times under the very root of the flower. To prevent disease, such watering is done in autumn and spring.
Viral disease (yellow mosaic)
A rare viral disease transmitted by insects such as caterpillars, mites, aphids. There is no cure for the disease. It is necessary to cut off the diseased parts of clematis in time and treat the flower with pesticides – colloidal sulfur, karbofos, potassium soap. Phlox, delphinium, peony, hosta, bulbous, aquilegia, sweet peas should not grow nearby, they are also susceptible to infection. Better to avoid unwanted neighborhood.
vermin
Another reason why clematis dries is a spider mite that sucks juices out of it. White dots on the leaves speak of its appearance, and when it settles down, it is difficult not to notice the entangling cobwebs on them.
Insectoaricides and acaricides help to get rid of the invasion. It happens that they use improvised materials – dishwashing liquid, diluted with water to the state of a soapy solution. For best results, after processing, wrap the flower with plastic wrap for two days.
The author of the video will share with you about some of the reasons that cause yellowing of foliage in clematis.
Conclusion
Now it’s clear why clematis dries, and what to do with this trouble. The main thing is to carefully monitor the flower so as not to miss the first signs of the disease, and take the necessary measures in a timely manner. With proper care, attention and care, it will delight with magnificent flowering for a long time.