Reasons for non-flowering of Osmanthus fragrans and its treatment

Osmanthus fragrance is not only pleasant, and sweet-scented osmanthus can also do some food, it is also very beneficial to the human body, now sweet-scented osmanthus can also be potted, but if not maintained properly, it is easy to cause sweet-scented osmanthus not to bloom. So what are the reasons why sweet-scented osmanthus does not bloom? How should we deal with it?

Potted osmanthus fragrans

First, improper fertilization: if long-term application of nitrogen fertilizer, it will make the branches and leaves grow excessively and affect flowering. Sweet-scented osmanthus likes fertilizers containing more phosphorus and potassium. In addition to using fully fermented organic fertilizers as base fertilizers when changing pots, liquid fertilizers containing phosphorus and potassium should be applied several times before flowering.

Second, lack of light: sweet-scented osmanthus trees are long-day flowers and trees. Although it is more shady, it is too shady and cannot blossom normally when the light is less than 10 hours a day.

Third, too much watering: perishable roots, fallen leaves, affecting flowering. Even if it does not rot, it will make the branches and leaves grow and not blossom. Sweet-scented osmanthus watering should be paid attention to: less watering before the occurrence of new shoots, less watering in cloudy days, and more watering in hot and dry days in summer and autumn.

Fourth, change the pot is not timely: potted sweet-scented osmanthus, do not change the pot for a long time, resulting in the root system can not expand, the transport capacity is weakened, can not get sufficient nutrients, affecting the normal growth and development, so the pot should be changed in time.

Fifth, low-temperature exercise is not enough: potted sweet-scented osmanthus in winter premature room, such as room temperature above 10 degrees, can not meet the physiological requirements of low-temperature dormancy of sweet-scented osmanthus, which will affect flowering in the coming year. In the south of the Yangtze River, potted sweet-scented osmanthus can survive the winter on the balcony, not only will not suffer frost damage, but is beneficial to flowering.

Sixth, the influence of smoke and dust: sweet-scented osmanthus is not resistant to smoke and dust, if the surrounding air pollution is serious, it is obviously poor growth, leaves become small and easy to fall off, it is difficult to blossom. The method of flushing can be taken to wash the dust off the leaves and strengthen the management.

Causes and solutions of non-flowering of potted sweet-scented osmanthus

Potted sweet-scented osmanthus is mostly cuttings, grafted seedlings, short flowering time. Cutting sweet-scented osmanthus blossoms in the fourth year, grafted osmanthus, silver osmanthus and Dan can blossom in the second year, while four seasons osmanthus blossoms in the same year, but in cultivation, potted sweet-scented osmanthus still does not bloom at flowering time. The main reasons for the failure of sweet-scented osmanthus bloom are the following nine aspects and solutions.

Enter the room prematurely, the temperature is above 10 degrees Celsius, sweet-scented osmanthus can not get enough dormancy. Make sweet-scented osmanthus sprout and spread leaves early, consume a lot of nutrients, coupled with lack of light, plant weakness, affect flowering.

After coming out of the room in spring, the wind and the sun will dry the leaf tips, so it is not easy to blossom even if the new buds are produced again.

Lack of nutrients. Sweet-scented osmanthus like fertilizer, some potted sweet-scented osmanthus, several years did not change the pot to change the soil, resulting in insufficient nutrition, root knots can not be extended, affecting flowering.

There is not enough light. Sweet-scented osmanthus needs more than 10 hours of light, otherwise the leaves are not luxuriant, affecting flower bud gestation and not blooming. Flower buds are difficult to form. Sweet-scented osmanthus trees like strong light, and only when they are planted in places with plenty of sunshine and good ventilation, can they be fully exposed to light. If shaded for a long time, it is easy to cause branches and leaves to grow and affect the formation of flower buds. There are so many tall buildings in the city that it is difficult to blossom if you only get a few hours of sun a day. The garden is relatively empty, there should be no lighting problem, but now the design is highly close planting. Sweet-scented osmanthus trees high, medium and low trees three-dimensional layout, sweet-scented osmanthus in the middle, shading each other, resulting in lack of light, difficult to bloom.

Too much water. Cause rotten roots, fallen leaves, affect flowering.

Too much nitrogen fertilizer. Make the branches and leaves grow and affect the flowering.

Soot and oil dirt pollution. Sweet-scented osmanthus is not resistant to soot and oil dirt, and its leaves have been polluted by soot and oil for a long time, resulting in poor growth and even leaf shedding, affecting flowering. Air pollution. The longer the leaves are, the smaller they are, and they are easy to fall off, with little or no flowering.

Lack of pruning. Osmanthus fragrans has developed root system and strong sprouting ability. If it is not pruned properly, the branches and leaves will be too dense, which will affect flowering.

Diseases and insect pests. The disease is serious when it is shaded, humid and poorly ventilated. after the disease, the leaves are withered and yellow, the flowers are reduced and the flowers become smaller.

In order to make potted sweet-scented osmanthus blossom, corresponding countermeasures should be taken according to the reasons for non-flowering. Ensure low temperature hibernation. Potted sweet-scented osmanthus overwintering temperature 3-5 degrees Celsius, above 3 degrees Celsius do not need to enter the room, maintain the natural temperature; below 3 degrees Celsius, enter the room. After entering the house, it will be dormant at a low temperature so that it can thrive and flourish in the following year.

When coming out of the room in spring, you should move out of the room on cloudy or rainy days, avoid sudden exposure to the scorching sun, and gradually adapt to the outdoor environment.

To ensure long sunshine, there should be more than 10 hours of sunshine every day to meet the sunshine needs.

Water properly. Should maintain 30% water content, hot summer, 60% water content is appropriate, not too dry and too wet.

Nitrogen fertilizer should not be too much and should be applied with phosphorus and potassium fertilizer. Sweet-scented osmanthus needs a lot of phosphorus and potassium fertilizer, which can be topdressing outside the root, and 0.1% Murray 0.2% potassium dihydrogen phosphate is sprayed on the leaves.

Prevent pollution. Fine gauze can be used to gently test the leaves to keep the leaves clean and rub them once on the 15th day to facilitate photosynthesis and make the plant grow healthily.

If the basin soil is too long, the basin soil should be changed. The soil of the basin is changed every 1-2 years, and a small amount of hoof can be used as base fertilizer at the bottom of the basin.

Trim properly. Cut off the diseased, weak and overdense branches before leaving the room, and cut them properly according to the plant shape, so as to ventilate and penetrate the light and promote its flowering.

In the prevention and control of diseases and insect pests, scale insects and aphids should be killed and 1000 times of methyl topiramate should be sprayed to treat diseases.

Why doesn't my osmanthus tree blossom? The reasons for the non-flowering of sweet-scented osmanthus trees and the solutions why my sweet-scented osmanthus trees do not bloom

September is the time when sweet-scented osmanthus is fragrant, but there are always some flower friends who do not want to cry in the face of their own unblooming osmanthus trees. Next, Huahua introduces how to make the osmanthus tree blossom!

Did you choose the right variety of cinnamon?

First of all, you should make sure that your sweet-scented osmanthus is the right choice. There is a kind of cinnamon called purple cinnamon, which will blossom only after it has grown into a big tree. Therefore, be careful when choosing a variety of osmanthus, and make sure with the seller that this kind of potted cinnamon can blossom only when it is ready to blossom.

When selecting sweet-scented osmanthus seedlings, it is best to choose the grafted seedlings with mature branches of improved varieties as scions, or the seedlings taken from the flowering branches or even the base by high pressure method, which is not only of good quality, but also easy to blossom after survival.

Is your osmanthus tree old enough to blossom?

After making sure that your own osmanthus tree is not wrong, next, it depends on whether your osmanthus tree has reached its flowering age. The life span of osmanthus trees is very long. Basically, they can survive for decades to hundreds of years, even for thousands of years. Osmanthus trees will not blossom if they are not old enough.

The seedlings sown take about ten years to blossom; the cuttings take four years to blossom; the grafted cinnamon has 1/5 blossoms the following year; and the grafted cinnamon blossoms in the same year, but very few.

Some of the transplanted sweet-scented osmanthus trees can blossom in the same year, while others have to adapt to one or two years before they bloom.

Of course, the last kind of big sweet-scented osmanthus tree, unless there is a big yard at home, or give up.

Have you done a good job in the daily maintenance of cinnamon?

1. Entering the house too early in winter will cause the osmanthus tree not to blossom.

The overwintering temperature of potted sweet-scented osmanthus is 3-5 ℃, no need to enter the room above 3 ℃, keep the natural temperature, and enter the room when the temperature is below 3 ℃. After entering the house, it will be dormant at a low temperature so that it can thrive and flourish in the following year.

2. After coming out of the room in spring, the leaves will dry up in the wind and sun, so it is not easy to blossom even if they sprout again.

Should be moved outdoors on cloudy or rainy days, avoid sudden exposure to the scorching sun, and should gradually adapt to the outdoor environment.

3. Do not change the basin in time

Some potted sweet-scented osmanthus did not change pots and soil for several years, resulting in insufficient nutrition, root knots can not be extended, affecting flowering. Therefore, sweet-scented osmanthus needs to be changed once every two or three years, and the change should be completed before March as far as possible, because this is the dormant period of sweet-scented osmanthus, and it has less impact on sweet-scented osmanthus.

4. Lack of light

Sweet-scented osmanthus likes light, and sweet-scented osmanthus needs more than 10 hours of light, otherwise the leaves are not luxuriant, affecting flower bud gestation and not blooming.

5. Overwatering

Too much watering will cause rotten roots, fallen leaves and affect flowering. Watering should follow the principle of "no dry, no watering, watering thoroughly", and the stagnant water in the basin should be removed in time after heavy rain and torrential rain.

6. Excessive nitrogen fertilizer and insufficient phosphorus and potassium fertilizer make branches and leaves grow and affect flowering.

The application of phosphorus and potassium fertilizer can promote it to transfer from vegetative growth stage to reproductive stage.

During the period of sprouting and growing branches in spring, fully mature cake fertilizer and other organic fertilizers should be applied, and after July, fertilizers containing mainly phosphorus should be applied, or 0.5% calcium superphosphate should be added to the fertilizers to promote flower bud growth.

Sweet-scented osmanthus needs a lot of phosphorus and potassium fertilizer, which can be topdressing outside the root, and 0.1% Murray 0.2% potassium dihydrogen phosphate is sprayed on the leaves.

7. Smoke and oil dirt pollution.

Sweet-scented osmanthus is not resistant to soot and oil dirt, and its leaves have been polluted by soot and oil for a long time, resulting in poor growth and even leaf shedding, affecting flowering. Fine gauze can be used to gently test the leaves to keep the leaves clean and rub them every 15 days to facilitate photosynthesis and make the plants grow healthily.

8. Lack of pruning.

Osmanthus fragrans has developed root system and strong sprouting ability. If it is not pruned properly, the branches and leaves will be too dense, which will affect flowering. Therefore, before leaving the room, it is necessary to cut off the diseased weak branches and overdense branches, and cut them properly according to the plant shape, so as to ventilate and penetrate the light and promote its flowering.

However, it should be noted that mistakenly cutting spring shoots will affect the flowering of the same year. If there are too many branches of sweet-scented osmanthus in full bloom, it will weaken the growth and affect the later flowering.

9. Sweet-scented osmanthus likes slightly acidic soil, and the suitable pH value is 5.5-6.5. Sweet-scented osmanthus, which grows in alkaline soil, often grows badly and affects flowering.

There are four commonly used formulations for sweet-scented osmanthus tree nutritious soil:

1. Peat soil 78% Mel 88%, mature compost 10% Mel 20%, superphosphate 2%.

two。 Peat soil and loess respectively.

3. Peat: garden soil or loess, with a proportion of 1:1 or 1:2.

4. 98% of the soil or dung, calcium superphosphate or calcium, magnesium, phosphorus, potassium fertilizer accounted for about 1%, and then add an appropriate amount of germicidal and insecticidal pesticides.

10. Osmanthus fragrans are susceptible to anthracnose.

You can spray 80% mancozeb wettable powder (Dasheng) 700 to 800 times, or 1% half-dose Bordeaux solution, or 75% chlorothalonil 500 times solution for control.

If the disease has occurred, quickly cut off the diseased leaves, fallen branches and fallen leaves, and burn them in time to strengthen ventilation.

11. Sweet-scented osmanthus trees are easily harmed by shell insects and other diseases and pests. If they are not treated in time, their flowering will also be affected.

When shell insects are found, the diseased plants can be wiped repeatedly with alcohol, and the ones removed will be very clean.

Well, most of the reasons why hanging trees don't blossom are here.

Hurry up to see if there is something wrong with your potted plant.