What causes the fall of osmanthus leaves

1. Too much water.

Osmanthus in the growth, need a reasonable water, it is afraid of waterlogging, if you do not pay attention to the control of water in the daily life, or the frequency of water is too frequent, it may cause damage to the roots, affecting the absorption and transportation function. If the amount of water in the potting soil is not very large, you can loosen the soil inside and put it in a place with good ventilation conditions to promote water evaporation, so that the plants can recover as soon as possible. If you have too much water, consider changing the potting soil.

2. Infection with pests and diseases.

In summer, the air is hot and humid, and it is difficult to circulate normally, which may breed diseases and pests, and also cause the leaves to fall down. It is usually necessary to ventilate more, and after being infected with pests and diseases, it is necessary to cut off the diseased branches and spray pesticides**.

3. Nutrient surplus.

Growth needs to be supplemented with nutrients, but if you fertilize regardless of the growth needs, it is likely to lead to a large surplus of nutrients, which will accumulate in the roots and be difficult to absorb, resulting in root burning, and will also cause osmanthus to lose leaves. Usually apply a thin Bika water-soluble fertilizer, if you accidentally apply too much fertilizer, you can add water to promote fertilizer discharge.

Fourth, strong sunlight.

Osmanthus trees need sunlight to grow, but if the sunlight is too strong, it will burn the leaves, causing them to turn yellow and fall off. You can quickly move the osmanthus to a cool place and wait for it to recover on its own.

First, normal upgrading. Because the leaves of plants, like any life, they have a lifespan problem, and when they end their life, they will fall off the tree, and only then will there be room for new leaves to grow. So it's normal to say that this kind of defoliation is normal.

The second is that the management is not in place, the lack of water or the concentration of fertilizer is too high, resulting in the internal moisture of the plant due to the high salt concentration in the external environment and the reverse osmosis water price, the plant in order to ensure its normal growth and survival and fall leaves, this situation is abnormal defoliation.

Planting of the garden.

When growing plants, the first and most important issue to consider is the soil, which you may have already encountered during the design of your garden.

Many of the new garden soils are now directly from construction waste, and many gardens have been planted for many years without any measures to protect the soil and increase soil fertility.

The better the soil fertility, the better it is for the growth of plants. If the topsoil of the plant is okay, but the subsoil has basically lost its fertility and needs to be replaced, then organic fertilizer must be buried, and the more the better.

When I say organic fertilizer, I mean a well-decayed mixture or manure, but it also includes mushroom-like compost and multi-purpose fertilizers. All of these fertilizers not only enhance soil nutrients, but also bind light, sandy soils together while loosening heavy soils.

In addition, the acidity and alkalinity of the soil must be determined, as different soil qualities will determine what kind of plants it is suitable for. Acidic soils are suitable for the growth of rhododendrons, such as rhododendrons and camellia. Alkaline soils are suitable for the growth of flowers such as clematis, drunken fish grass and carnations.

Neutral soils, on the other hand, can be used to grow a wide range of flowers. To determine the pH of the soil, you just need to buy some test materials.

There's also the big problem that irrigation water has different pH levels in different places, unless you have a bucket of stagnant water (because the rain is neutral), which is something that every gardener encounters. My advice is to plant according to the location, choose the right plants according to the nature of the soil, and let nature do its job. It would be unwise to let plants struggle to survive in an unsuitable soil environment.

The reasons for the loss of leaves of osmanthus include insufficient watering, excessive watering, low temperature, insufficient light, and disease and insect infestation.

1. Insufficient watering.

The leaves of the osmanthus tree may fall because of insufficient watering, the growth of the osmanthus tree needs sufficient water, when the weather is relatively hot, the rate of plant transpiration is relatively fast, and if it is not watered in time, the plant will secrete a large amount of abscisic acid, resulting in dehydration and fall of the leaves.

2. Overwatering.

Osmanthus tree leaves fall may also be overwatered, resulting in plant root rot, unable to absorb nutrients and water from the soil sail width, at this time to discharge the water in time, put it in a place of light and ventilation to make the water evaporate quickly, watering to follow the principle of seeing dry and wet, if the situation is more serious, to prune and disinfect the root system.

3. The temperature is too low.

The cold tolerance of the osmanthus tree is relatively poor, and if the temperature is relatively low in winter, the osmanthus tree is not insulated, which will also cause the leaves to fall. At this time, it should be transferred to a warm and translucent place, basking in more sunlight, or you can wrap a layer of plastic film on the outside of the trunk, and then cut off part of the leaves, which can reduce water loss.

4. Insufficient light.

Osmanthus trees like a sunny environment, if they are in a dark environment for a long time, it will lead to poor plant growth, and in serious cases, it will cause the leaves to fall, at this time, the sedan chair should be transferred to a sunny environment, especially in winter, to keep ventilation and light, but to avoid blowing off the leaves with too much wind.

5. Morning service insect infestation.

Pests and diseases during the growth process are one of the main causes of leaf loss in osmanthus trees. Pests and diseases can cause the loss of nutrients from the leaves, which means moving the plants to a ventilated environment, and spraying them with pesticides if the situation is severe.

The reasons for the loss of leaves of osmanthus are excessive water, improper fertilization, excessive light, and pests and diseases.

In the process of growth, the demand for water is still relatively large. However, the waterlogging tolerance of osmanthus trees is indeed relatively poor, so when we water, if we do not control the amount of watering or the number of watering is too much. If the soil produces stagnant water, it will seriously affect the growth and development of the roots.

When planting osmanthus trees, although fertilization is indispensable, we must pay attention to controlling the amount of fertilizer when fertilizing. We should fertilize reasonably according to the growth needs of osmanthus trees, and not too much fertilizer. It is recommended to fertilize regularly, do not use blindly, increase nutrients at the same time, but also improve the ornamental nature of osmanthus.

The growth habit of osmanthus

After the osmanthus flower has completed the flower bud differentiation, the opening of the flower needs to have suitable temperature conditions. Among them, the relative low temperature and its duration are the necessary conditions for flower opening, and the relative humidity also has a certain influence on flower opening. Different varieties have different sensitivities to temperature, resulting in early and late flowering.

The flower buds gradually opened after feeling enough relatively low temperature, and the overall flowering process could be divided into seven stages: bead stage, parietal shell stage, boll stem stage, fragrant eye stage, early flowering stage, full flowering stage and senescence stage. The end of flowering generally lasts for 1-2 days, that is, it is transferred to the flowering period. At this time, the color of the flower is diluted, and the flower is over.

If the weather is clear, a small number of scorched flowers often cling to the tree; In case of rain, all the withered flowers are scattered on the ground.

Osmanthus leaves can be remedied by controlling watering, when watering the plant, it is necessary to build a hole to check the state of the soil, when the soil surface is dry, then water the osmanthus, and water the soil thoroughly.

Osmanthus is a sun-loving plant, and the leaves fall off when touched, which may also be caused by a lack of light. Insufficient light search and light can not carry out photosynthesis normally, and it is easy to fall leaves. It is necessary to move to a sunny place in time, bask in the sun more, and pay attention to blocking the scorching summer sun in time.

If you find that the osmanthus leaves off, you can put the plant in a semi-shaded environment to provide sufficient scattered light for the osmanthus to promote photosynthesis of the plant, so as to restore normal growth.

Osmanthus leaves may be because the soil is coagulated into lumps, resulting in the root system of the plant can not absorb nutrients, at this time you can loosen the soil for osmanthus and make the soil loose, or you can directly replace the soil for the osmanthus and add basal fertilizer to the soil.

The rich fragrance of osmanthus is easy to attract pests and diseases, which leads to the fall of leaves, so in the process of maintenance, it is necessary to ventilate the osmanthus regularly to maintain the circulation of the air, and when it is found that there are diseases and insects on the branches and leaves of osmanthus, the pests and diseases should be removed immediately.

The leaves of osmanthus fall off when touched, and it may also be an environmental discomfort, which leads to diseases. Common diseases such as anthracnose, blight, brown spot, etc., in which the leaves are also prone to fall. It is necessary to cut off its diseased leaves in time, and spray pesticides to avoid leaving germs.

There are two possible scenarios for any plant to lose its leaves. First, normal upgrading. Because the leaves of plants, like any life, they have a lifespan problem, and when they are destroyed, they will fall off the tree, and only then will the new leaves have room to grow.

So it's normal to say that this kind of defoliation is normal. And because of the special growth environment, such as: management is not in place, lack of water or fertilizer concentration is too high, resulting in the plant's internal water shed residual volt due to the external environment salt concentration is too high and reverse osmosis water price, the plant in order to ensure its normal growth and survival and lose leaves, this situation is abnormal defoliation, we need to find the cause of defoliation.

If it is a lack of water, you can solve it by watering, since yours is a potted plant, if the chain fruit has been planted for a long time, because the whole potting soil may have been overgrown by the root system of osmanthus, watering may not be very easy to penetrate, you can consider changing the pot and increasing the potting soil; If you don't have time to change the pot for a while, you can prepare a container that is larger than your pot, fill it with water, put the whole pot in the water, and wait for the water in the container to slowly penetrate the whole pot soil before taking it out. This can manage some time. Of course, it is better to change the pot and change the soil.

If it's because of the fertilizer, you can only wash it with a lot of water. It is also possible to change the soil.

1. Improper planting season Osmanthus likes warmth, if transplanted when the temperature is low, the plant is easy to cause a large number of leaves due to lack of water. If the osmanthus has been sprouted and has long leaves, and in dry weather, and is not planted in time, watering, and proper pruning, it will also cause leaf fall.

2. Too arid When the soil is too dry, the plant sheds a large number of leaves in order to adapt to the environment.

3. Too wet and waterlogged Excessive soil moisture affects the normal life activities of plant roots, and is easy to cause a large number of leaf drops, and even root rot.

4. Excessive fertilization will cause leaf loss due to root injury.

1. The ball is buried too deep when planting.

2. The planting soil has poor drainage and poor ventilation.

3. Plant low-lying places or high groundwater levels.

Osmanthus leaves will fall off when they dry up.

The dry leaves of osmanthus are mainly due to these reasons:

The first reason is the lack of water, long-term insufficient watering, and dry air will make the plant lack water, which will cause dry leaves, leaf loss.

The second reason is waterlogging caused by overwatering, which leads to root rot.

The third reason is that it is infected with pests and diseases, which will attack the leaves, resulting in dead leaves and leaf loss. The fourth reason is that in summer, strong direct sunlight evaporates the water on the leaves, causing the leaves to become dry and brittle.

Cultivation method of osmanthus:

1. Soil. Osmanthus tree has relatively high requirements for soil, so it should choose loose and fertile, slightly acidic soil with ventilation and drainage, and prepare humus, garden soil and sandy soil according to the ratio of 5:3:2 to be used.

2. Moisture. The growth of osmanthus trees requires a large amount of water, and the lack of water will cause its branches and leaves to wither and rot its roots. In spring and autumn, the soil should be kept moist, and the amount and frequency of watering should be increased in summer to avoid water shortage due to rapid evaporation of water; In winter, there is no need for excessive watering to avoid water accumulation.

3. Fertilization. The growth of osmanthus trees needs to be fertilized properly, and fully rotted poultry fertilizer, pig manure, chicken and duck manure can be fertilized, and fertilized every 7-10 days during the growth period. In summer, it is advisable to use organic fertilizer; Use diluted phosphate fertilizers in autumn as appropriate; In winter, you can use rice washing water and yogurt at home to fertilize the osmanthus tree.

4. Illumination. Osmanthus trees need sufficient light conditions to grow, and they can receive all-day light in spring and autumn; In summer, when the temperature is high, it should be placed in a cool and ventilated location; In winter, it is best to keep it indoors in a sunny place. The lack of photosynthesis in osmanthus trees will cause serious consequences such as delayed flowering and non-flowering.

Osmanthus tree is a plant with a very long history of cultivation in our country, there are a large number of osmanthus planted in the open field in the south and southwest of the Yellow River, which is often appreciated by potted skinners, but there are often some problems in the maintenance process, such as falling leaves, so, do you know what is going on with the leaves of the osmanthus tree? What should I do if I encounter this?

Pictured: Osmanthus in full bloom.

Below, Uncle Gardener will analyze the causes and solutions of the leaves of the osmanthus tree for you:

1. Transplant a large number of fallen leaves.

Osmanthus trees often lose a lot of leaves after transplanting, which is mainly because the root system is damaged during the transplanting process, and the transport of water and nutrients is hindered, and it is in the slow seedling stage at this time.

Solution: After the osmanthus tree is transplanted, it should be watered thoroughly and placed in a ventilated and cool place for maintenance, not in direct sunlight. When the leaves are alive or have new shoots germinating, they can be maintained normally.

Pictured: A potted osmanthus tree loses a lot of leaves.

2. Stagnant water leads to rotten roots and fallen leaves.

If the osmanthus tree is waterlogged, it will cause root rot, and root rot will cause leaf loss.

Solution: If the ground osmanthus tree is waterlogged, it is necessary to open a ditch to loosen the soil, drain too much water, and the potted osmanthus water can be repotted.

3. Pests and diseases cause defoliation.

Osmanthus brown spot, osmanthus blight and osmanthus anthracnose are common leaf diseases of osmanthus, which can cause early defoliation of osmanthus, weaken the growth potential of the plant, and reduce the flower yield and ornamental value of osmanthus.

Solution: Strengthen cultivation management and reduce infestation**. Potted osmanthus should be removed from diseased leaves in time, and osmanthus trees cultivated in the open field should be completely removed from diseased leaves in autumn.

Pictured: Osmanthus potted plant.

Tips] Osmanthus tree is an evergreen plant, even in winter will not fall leaves, even if the old leaves will be lost because of metabolism drop and update, but most of them are in April, other times the old leaves are rarely decided, it should be noted that the northern burning ear potato is cold in winter, osmanthus trees generally can not be planted on the ground, can only be enjoyed in pots.