How to conserve Rhododendron in potted plants in North China

Rhododendron alias Yingshanhong, rhododendron, belongs to the rhododendron family, rhododendron genus, is an evergreen or semi-evergreen shrub, is one of the top ten famous flowers in China, known as "flowers in the west", deeply loved by people. In the south, it is mostly cultivated in the open field, which is easy to manage, but in the north, it is mostly potted, which needs fine management, otherwise it is easy to cause death, unhealthy plants, few flowers and so on. The cultivation of rhododendron in the north should pay attention to the following points:

(1) soil. In the acid soil with loose, strong ventilation, good drainage and rich in humus, the pH value of 5.0-6.0 is the most suitable. If you use clay or alkaline soil, it is difficult to survive. However, most of the soils in northern China are alkaline, so it is not suitable to cultivate rhododendron. Therefore, acidic peat soil or pine needle soil mixed with pine needles must be selected, or 7 parts of ordinary mountain soil, 2 parts of pine needles and 1 part of deciduous weeds can be used to make basin soil, and then ferrous sulfate is used to adjust the pH value to the most suitable value.

(2) moisture. Rhododendron is a shallow root plant, sexual preference for yin and dampness, should not be too dry, the general basin soil to maintain moisture at 18% 20% is appropriate. There is a large amount of water in the growing period and flowering period, generally spraying once a day or once every other day, and spraying water to the leaf surface and ground to ensure a certain air humidity in the dry season. The water quality of Rain Water and river water is better. If tap water is used, it should be stored for 1-2 days before use to prevent chlorine gas from causing damage. 0.2% ferrous sulfate is sprayed with water every 7 to 10 days to ensure the acidity of the soil. Spray water more in the morning or before noon, do not water when the temperature is high at noon, so as not to hurt the root. Less water is needed during the dormant period in winter, and the number of water spraying is reduced accordingly to ensure that the soil is moist, otherwise stagnant water will cause rotten roots.

(3) light. Azaleas like light forks are afraid of hot sun exposure, especially in summer should be placed in the shade, light transmittance of 60% is appropriate, new buds and leaves to prevent sun burns, the north in June to July need to prevent direct noon sunlight.

(4) fertilization. Timely fertilization is an important link to ensure luxuriant branches and leaves and colorful flowers of rhododendron. Because the rhododendron root is shallow, brittle and easy to break, and the ability to absorb fertilizer is poor, we should grasp the principle of "applying thin fertilizer frequently", avoid applying thick fertilizer and raw fertilizer, and it is easy to burn roots if the concentration is too high. The interval of each fertilization is generally 10-15 days, and fertilization is mainly based on phosphate fertilizer and nitrogen fertilizer. You can also use mature bean cake water, fish meal, etc., and avoid human feces and urine. If the yellowing of leaves is caused by iron deficiency, 1% ferrous sulfate can be sprayed for 2 or 3 times in a row, and the leaves will change from yellow to green.

(5) trim. Rhododendron has strong germination ability and dense branch growth, so it is common to cut off overgrown branches, overlapping branches, disease and insect branches, deformed branches and damaged branches in spring and autumn. If the middle branch is too dense to affect the light and ventilation, the inner bore branch can be removed and the pruning should be shaped at the same time.

(6) change the basin. Azaleas grow slowly and generally change the potted soil every 1-2 years. The basin change is carried out in the spring and autumn season, it is best to take the root soil ball when changing the basin, peel off the old soil 1ax 3, cut off part of the bad blackened roots, and then move to a larger basin, add acid soil to fill a little compaction, so that the roots are closely combined with the soil, pour water once, and see the light again after a week in the shade.

How to grow potted azaleas? Conservation methods of potted rhododendron azaleas, also known as Yingshanhong and pomegranate, are evergreen shrubs. According to legend, there were cuckoos in ancient times who mourned day and night for hemoptysis and stained red flowers all over the mountain, hence the name. Although it is a small thing to raise a pot of azaleas, it is not easy. All aspects need to be taken care of. For many novice flower lovers, it may not be clear how to raise potted azaleas. The following editor will talk about the conservation methods of potted azaleas in combination with the conservation experience of many flower friends.

First, the amount of soil water is off. It refers to selecting the right substrate for the cuckoo and mastering the correct watering method. There is a lot of discussion on this issue, and there are many experiences that can be used for reference. if you have the energy to take good care of it, it is recommended to use the method of quantitative watering. This pass can also be called the survival pass, and the goal is to feed the cuckoo. It is suitable for cuckoo to use water with PH below 7. In areas where the water quality tends to be alkaline, in addition to storing Rain Water and snow water, acidified water can be used, that is, 100 jin of water plus 0.1% ferrous sulfate for perennial use. If the acidity is not enough, you can supplement it with less vinegar. Second, the quality of water and fertilizer is critical. It is very important to ensure the long-term healthy growth of rhododendron, blooming flowers and leaves, acidic water quality and proper fertilizer. At this stage, FeSO4 plays a key role, it can not only reduce the PH value, but also provide sufficient iron and thiogen, although they do not fully understand their specific role, but from practical experience, these roles are very important. Other fertilizers such as nitrogen, phosphorus and potassium are used similar to other flowers, but the amount is reduced because the cuckoo needs less fertilizer. The second level can be said to improve the level, and the goal is to be healthy and long-term. Third, trim and plastic surgery. The function of pruning and plastic surgery is for beauty and rejuvenation. Rhododendron is a perennial woody plant, and resistant to pruning, can be trimmed into individual potted works. There is a lot of knowledge in this. Cuckoos have their own growth rules, and it is not easy to make them grow according to human arrangements. Plant shape can be controlled by wiping buds, shrinking branches, binding, strong cutting and other measures. In addition, after the cuckoo has grown for more years, the phenomenon of aging will appear and the growth will become weak. at this time, we can restore the growth vitality through pruning, the specific method can refer to the relevant materials. The third level is basically proficient in customs, after clearance can be said to have mastered cuckoo potted plants. There are three kinds of problems and solutions encountered in the process of raising cuckoos: cuckoos grow in the indoor environment in the north, the conditions are stable, and there are not too many problems encountered. Now sum up, hoping to be helpful to flower lovers who are equally troubled. 1. Lack of water. This problem is the most common and easiest to solve. Cuckoos wilting and falling leaves due to drought can recover soon after adequate water supply. 2. Hard water hazard. When cuckoos are irrigated with unacidified water for a long time, they will suffer chronic injury, grow worse and worse, and eventually lead to death. Cuckoos with this problem can recover after switching to acidified water, but it takes a slow process. Sometimes there are a lot of new buds, feeling recovered, stop growing a few days later, continue to improve after a period of time, after several times, and finally return to health. 3. The soil causes damage to the root. Rhododendron leaves and dehydration caused by improper soil or the use of raw fertilizer is often a root problem, which is difficult to recover. In this situation, you'd better give up and start all over again to save more time. Conclusion: the above is about the conservation methods of potted azaleas. I hope it will be helpful to the friends who plant azaleas. Maintenance and Management techniques of potted Flowers in four Seasons in North China

How should potted flowers in the north be managed in winter? Today, the editor of Huinong Network will analyze the management techniques of potted flowers in northern China from four different seasons.

1 maintenance of potted flowers in spring

1.1 be timely when you leave the room.

Early spring weather is warm and cold, the climate is changeable, spring potted flowers should be a little late and not too early, should be slow rather than urgent. Specifically, plum blossom and rose with strong cold resistance can leave the room when the average temperature of day and night reaches 15 ℃; jasmine, Milan, leaf flower, cactus, crab claw orchid with weak cold resistance should leave the room when the outdoor temperature reaches 18 ℃. In order not to affect the normal growth and development of potted flowers, it is best to make them go through a process of adapting to the outdoor environment before going out of the room, and then go out for maintenance throughout the day to avoid damage.

1.2 appropriate amount of fertilizer and water

Potted flowers live indoors for a long time in winter, their growth weakens, and the newly germinated buds, young leaves and young roots are delicate. If thick fertilizer or raw fertilizer is applied at this time, it is extremely vulnerable to fertilizer damage, "burning" buds and shoots. Therefore, fertilizing potted flowers in early spring should grasp the principle of "applying less fertilizer and increasing it gradually". At the same time, do not apply raw fertilizer, but should apply fully mature thin pancake fertilizer and water. It is usually applied every 10 to 15 days, which is easy to be carried out in the evening on sunny days.

Watering potted flowers in early spring should be moderate, not too much. At this time, the temperature is not high, the water evaporation is less, if the watering is too much, the basin soil is moist for a long time, it will lead to lack of oxygen in the soil, causing rotten roots, fallen leaves, and even the death of the whole plant. With the gradual increase of temperature, the amount of water gradually increased, but it should not be excessive. Throughout spring watering master the principle of "no dry, no watering, watering must be thoroughly", and remember the stagnant water in the basin. The watering time in spring should be before noon. After each fertilization and watering, the soil should be loosened in time to make the basin soil well ventilated. Spring climate is dry and windy, should pay attention to often spray water on the branches and leaves, increase air humidity, in order to facilitate the growth of potted flowers.

Summer maintenance of 2 pots of flowers

2.1 appropriate amount of light

Like the flowers with plenty of light, to the hot summer season, it is best to move to a slightly shaded place to prevent strong light exposure, the growth is better. Generally negative or shade-loving flowers should be maintained in an environment with good ventilation and shade of 50% to 85% in summer. If you are exposed to a strong light at this time, it will cause the branches and leaves to wither and yellow, and even die. To this kind of flower, move to north or east balcony or window after summer, reduce light intensity, in favor of healthy growth.

2.2 cooling and humidification

The optimum temperature for the growth of most flowers is 20-30 ℃. The highest temperature in summer in most areas of China should reach more than 30 ℃. When the temperature exceeds the maximum limit of flower growth, the normal life activities of flowers will be blocked, resulting in short plants, partial burns of leaves, reduction of flower quantity and shortening of flowering period. Many flowers bloom little or no in summer. Attention must be paid to cooling in summer. At the same time, increasing humidity is another important measure to raise potted flowers in summer.

3 maintenance of potted flowers in autumn

3.1 proper water and fertilizer

The management of water and fertilizer after autumn needs to be treated differently according to the different ecological habits of all kinds of flowers. For Camellia and rhododendron which bloom once a year, liquid fertilizer mainly based on phosphate fertilizer should be applied 2 or 3 times in time, otherwise the flowers are small and few, and the rose and Milan that bloom many times a year should continue to provide sufficient water and fertilizer to promote them to blossom continuously. For most flowers, the north is generally no longer fertilized after Cold Dew's festival, in order to survive the winter safely. With the decrease of air temperature, except for the flowers blooming in autumn, winter or early spring and grass flowers sown in autumn, which can continue to be watered normally according to the actual needs of each kind of flowers, the watering times and amount of water for other flowers should be gradually reduced to avoid excessive water and fertilizer, affecting flower bud differentiation and suffering frost injury.

3.2 pay attention to pruning and shaping

When the temperature is about 20 ℃ after autumn, most flowers are easy to sprout shoots. Except for retaining some branches according to needs, the rest should be cut off in time to reduce nutrient consumption. It is also necessary to pick the heart in time for the retained twigs.

3.3 pick seeds in time

The seeds of many flowers mature before and after mid-autumn and need to be harvested in time. A bunch of red, morning glory and other seeds are harvested and dried in the sun and put into a cloth bag and stored in a low-temperature ventilated place.

4 maintenance of potted flowers in winter

4.1 enhance the lighting

In winter, the sunshine time is short, the sunshine intensity is low, and the indoor lighting condition is worse than that outside. The flowers that enter the house after late autumn can be placed in different positions indoors according to their ecological habits. Usually, flowers that like strong light and high temperature and bloom in winter and spring are placed on and near the south windowsill where there is plenty of sunshine; flowers that like light but are able to withstand low temperatures or have been dormant can be placed in places with bright scattered light; other flowers that are capable of lower temperature and have fallen leaves or are not strict with light can be placed in darker and cooler places.

4.2 Control of water and fertilizer

Except for the species of flowering in autumn, winter and early spring and most foliage plants, which can continue to be properly watered and fertilized according to the habits of flowers, the supply of water and fertilizer should be strictly controlled in general potted flowers. Reduce the amount of fertilizer applied to potted flowers in winter and stop fertilizing dormant or semi-dormant flowers, otherwise it is easy to rot roots or even die the whole plant. In particular, the pot flowers with low room temperature and no heating equipment in winter can reduce the watering times and the amount of water, so as to keep the basin soil dry so as to avoid rotting roots or freezing damage. Winter watering should be around noon, avoid watering in the evening, lest the basin soil is too wet, cold at night and make the root suffer.

With regard to the conservation and management techniques of potted flowers in the northern region, that's all for today. Florists in the north can come and learn more!