Question 2: How to raise azaleas? The raising methods and precautions of azaleas are as follows:
1. Pot soil: If it is a pot, it is more suitable to use a clay pot, and the ventilation effect with holes at the bottom is better. Rhododendron has shallow roots and slow growth, so it can be selected.
Use a smaller pot, so it won't be wasted when watering, which is more conducive to growth. In terms of basin soil, acid soil with loose texture and good drainage should be selected, and some humus soil and sawdust can also be selected. Pay attention to the bottom layer when filling the basin soil.
It is covered with coarse soil and fine soil. In terms of remediation of basin soil, newly planted soil can be changed once every two years or once every three to five years from 1 to 10.
2. Water: Rhododendron
The roots of flowers are very thin and have poor absorption ability, so water can only reach the flower body through the absorption of the roots. Therefore, in addition to the winter dormancy period, especially after March every year, the rhododendrons should be watered frequently.
During the growth period from July to September, flowering period and high temperature period, the watering frequency should be increased, and it is best to ensure that it is watered twice a day, and it is advisable to water less in autumn and winter. Pay attention to the tap water used to water the flowers, it is best to first
Store these utensils for a day or two before watering the flowers.
3. Illumination: Rhododendron should be fully illuminated at all times in the process of reproduction, because only full illumination can bloom well. Of course, you can't be exposed to the sun in hot summer, but you should strengthen the shading work to prevent sunburn. In addition, proper protection should be done during the flowering period, and shading nets can be used for protection, and the flowering period should not be exposed to the sun.
4. Fertilization: Proper fertilization can make rhododendron grow stronger and faster. Like most indoor flowers, the fertilization principle of azaleas is to apply more thin fertilizer, that is, less at a time and more times. exist
When the old leaves turn green, fertilize them two or three times during and after flowering, and never fertilize them in hot weather. Rhododendron cultivation and fertilization can use grass juice, fishy water, rapeseed cake and other materials. Besides, I found that I was ill.
Branches should be cut off in time to prevent other branches from growing healthily.
5. Pest control: In the process of rhododendron cultivation, the main pests are bugs, aphids and so on. , and found pests.
When a small amount is visible to the naked eye, it can be wiped off with a wet cloth. If the dosage is large and the pests are serious, you should buy insecticidal liquid in the local drugstore for effective control, and pay attention to placing azalea flowerpots in well-ventilated and well-lit places.
Putting it in a dark place is also one of the causes of pests.
Question 3: How to raise azaleas, the breeding methods of azaleas and matters needing attention (azaleas. ): Yingshanhong, also known as Yingshanhong and Shan Shiliu, is an evergreen or ordinary green shrub. According to legend, there was a cuckoo in ancient times, which crowed day and night, hemoptysis, and dyed flowers all over the mountain, hence the name. Rhododendrons usually bloom in spring, with 2-6 flowers in each cluster. Corolla is funnel-shaped, with red, pink, apricot, snow blue, white and so on. , gorgeous colors. Born under sparse thickets or pine forests in mountainous areas at an altitude of 500-1200 (-2,500) meters, it is a typical indicator plant of acidic soil in south-central and southwest China.
This whole plant is used as medicine: it can promote qi and blood circulation, tonify deficiency, treat cough due to internal injury, deafness due to kidney deficiency, irregular menstruation and rheumatism. Because the corolla is bright red, it is a famous flower plant with high ornamental value and is cultivated in parks all over the world. There are as many as seven or eight cities in Jiangxi, Anhui, Guizhou and other places in China. Rhododendron is a provincial flower and has been designated as the city flower. 1985 In May, Rhododendron was rated as six of the top ten flowers in China.
land
Rhododendron is a shade-loving plant, and direct sunlight is not good for its growth. Therefore, it is best to choose a shady place, or take this into account when designing greening, and deliberately arrange trees in a special garden. Rhododendron likes acidic soil with good drainage, but because all kinds of gardens and landscapes use cement as roads and pavements, the soil in Rhododendron planting area is alkaline, so it is necessary to replace the soil in planting area and add a certain amount of peat soil.
North of the Yangtze River, potted plants are used for viewing. Potted soil consists of humus soil, sandy soil and the same soil (7:2: 1) mixed into cake fertilizer, manure and so on. , stir well and plant. Generally, change pots or soil in March in spring. The area south of the Yangtze River is mainly planted in the ground, which should be planted before germination in spring. The place should be in a ventilated and semi-cool place. The soil should be loose and fertile, rich in humus, and acidic sandy loam is suitable, and it is not suitable for water accumulation, otherwise it is not conducive to the normal growth of rhododendrons. After planting, be sure to water it. [4]
plant
Rhododendron is most suitable for planting in early spring or late autumn. If it is planted in other seasons, a shade shed must be built. When planting, the roots and soil must be uniform, but not too tight, and the soil surface near the roots is in an arc state, which can not only protect the shallow roots of plants from freezing damage, but also facilitate drainage. [4]
temperature
Move out of the greenhouse in the middle and late April, first put it in the lee of the sun, cool in summer, or put it in the shade under the tree to avoid direct sunlight. The suitable growth temperature is 15-25℃, and the highest temperature is 32℃. From mid-June, autumn, 10 is moved indoors, and it is placed in a sunny place in winter. The room temperature is kept at 5- 10℃, and the lowest temperature cannot be lower than 5℃, otherwise it will stop growing. [4]
water
Rhododendron requires the soil to be wet, not wet. Generally, in spring and autumn, cuckoos planted in the open field can be watered once every 2-3 days, and in hot summer, at least once a day. Do not use alkaline water for daily watering, and pay attention to the water temperature not to be too cold when watering, especially in hot summer, when watering thoroughly with cold water, the soil temperature suddenly drops, which affects the water absorption of roots and interferes with the physiological balance of plants.
After planting and soil improvement, water 1 time to make the roots fully contact with the soil, which is beneficial to the survival and growth of the roots. Pay attention to watering during the growth period, and gradually increase the amount of watering from March, especially in summer, always keep the basin soil moist, but don't accumulate water. Reduce watering after September, and then water after entering the house in winter. [4]
humidity
Rhododendron likes the environment with high air humidity, but some Rhododendron gardens are built on both sides of squares and roads, and the air flows quickly and is relatively dry. It is necessary to spray water on Rhododendron leaves or the surrounding air frequently to keep the air around Rhododendron gardens moist. [4]
Fertilize soil or land
At the end of winter and the beginning of spring every year, it is best to apply some organic fertilizer as base fertilizer to Rhododendron Garden. After the azalea blooms in April-May, because the plant consumes a lot of nutrients during the flowering period, with the germination of leaf buds, new buds are taken out and fertilizer can be applied every 15 days. After lodging, most branches have stopped growing. At this time, it is in the high temperature season, and the physiological activity is weakened, so topdressing can be stopped. After autumn, the climate is getting cooler and there is autumn rain, and the temperature and humidity are suitable for the growth of azaleas. At this time, topdressing can be carried out for the last time, and fertilization is generally not suitable after winter.
Rational fertilization is the key to raising rhododendron, preferring fertilizer but avoiding it. During the spring and autumn growing season, 10 times liquid water of pancake fertilizer should be applied every 1 0 day, which can be fermented with rice washing water, peel and vegetable leaves. In autumn, you can supplement some phosphorus and potassium fertilizers, and you can use fish and chicken viscera and meat washing water, rice washing water and some peels. In addition to the homemade household fertilizers mentioned above, you can also buy some household fertilizers to use, but remember to apply them "thinly". ......& gt& gt
Question 4: How to raise azaleas in potted azaleas is actually not difficult. Just pay attention to a few key points: 1, soil: weak acid soil (PH 4.5~5.5) must be used as soil. If neutral or weakly alkaline soil is used, it will grow poorly and die. 2, water: water must also choose weak acidic water or neutral water; In the north, the solution of ferrous sulfate or white vinegar with the ratio of 1: 1000 must be poured every ten days or so to keep the PH value of the soil in the weak acid range. In addition, water should adhere to the principle of no water, and no water can accumulate. 3. Light: Many people think that azaleas like shade. In fact, azaleas need strong light in spring, autumn and winter, and only need shade when it is hot in summer; When the light is insufficient, the blooming flowers may become smaller or change from double to semi-double, and from semi-double to single. 4, fertilizer: Rhododendron root system is weak, we must apply thin fertilizer frequently, do not apply thick fertilizer indiscriminately, otherwise it will die. 5. Rhododendron had better change the pot soil once a year. If you don't change the soil for two years, you will grow poorly and die. 6, azaleas like humidity, but poor ventilation, it is possible to give birth to red spiders; Insufficient light may lead to brown spot disease; Spray as soon as you find it.
Question 5: How can we raise azaleas well? Rhododendron is a neutral flower and likes warm, semi-cloudy, cool, ventilated and humid environment. Loose, fertile and humus-rich acidic soil (loess) is required, and the pH value is between 5.5 and 6.5. It is forbidden to use alkaline or cohesive soil. The suitable growth temperature is 65438 02℃ to 25℃. Shade in summer and keep warm in winter. It is best to move indoors, especially delicate azaleas such as western azaleas, and pay more attention to maintenance. This paper introduces the author's practical experience in cultivating azaleas in recent years for your reference:
1. The roots of rhododendron must be as thin as hair, with few thick straight roots. It is afraid of dryness and dampness, especially of heavy fertilizer. If you water too much, the roots will soak in the water and dry too much, the branches and leaves will shrink and fall off, which is a great threat to plants. As for heavy fat, it will be life-threatening.
2. After the flowers wither, the residual flowers must be cut off to avoid consuming nutrition when hanging fruit. After the new branches germinate, they should be properly thinned according to the growth of the plants.
3. Rhododendron is most suitable for planting in clay pots, because the clay pots absorb water and breathe air, which is conducive to the growth and development of roots and lush foliage.
4. potted azaleas should be placed on the balcony in the southeast, ventilated and move as little as possible. Without ventilation, it is easy to suffer from black spot disease and a lot of fallen leaves.
5. Rhododendrons should also have moderate requirements for light, and direct light should be avoided in summer. Fertilization should be thin and diligent, and organic compound fertilizer should be applied to the basin soil once a month. Spraying potassium dihydrogen phosphate every 10 day for in vitro fertilization. Add water in time, or add vinegar to the water to increase the acidity.
6. Dredge the bud leaves in time, remove some bud leaves that grow too much and too dense, make the air circulate, and concentrate the nutrients in the bud. After the bud is formed, it is necessary to increase nutrition and apply more phosphorus and potassium fertilizer, otherwise the bud will become a leaf bud.
7. The main reasons why rhododendron leaves do not bloom are: too strong direct sunlight in summer, cold and frostbite, too much watering, too thick fertilization, too long indoor time, being placed in a dark, humid and unventilated place, being rained by acid rain, etc., so these situations should be avoided in the maintenance process.
8. Turning pots and changing soil does not need to be done every year, but usually once every two to three years to minimize the damage to the root system. The time should be after flowering or autumn, and topaz should be sprayed at the same time to prevent diseases.
9. Rhododendron pests are mainly red spiders and aphids, and pyrethroids can be sprayed with good results. If it's not dead after three days, spray it again. The disease is mainly black spot disease, which is caused by hot environment and insufficient light. Measures can be taken to promote air circulation on the one hand and spray Bordeaux mixture and carbendazim on the other.
10. The propagation method of rhododendron is mainly cutting. Select 5cm- 10cm long new branches before and after awn seeds, cut them off at the bifurcation, peel off the lower leaves, leave 3-4 upper leaves, insert 1/3 branches into the soil, spray enough water, and cover them with plastic film. Management should be strengthened at ordinary times and transplanted one year later.
Question 6: How to raise azaleas indoors is one of the top ten famous flowers in China. Among all ornamental flowers and trees, it can be called beautiful flowers and beautiful leaves, which is suitable for ground planting and potted plants. Rhododendron is the most widely used. How to raise azaleas well? First of all, we must understand the conditions needed for its growth and development. Rhododendron has "six joys" and "six taboos", namely: ① prefer cool and avoid hot summer; 2 like half yin, avoid the hot sun; (3) like wet, avoid dry; ④ Prefer acidic soil and avoid alkaline soil; ⑤ prefer light soil to heavy soil; ⑥ Be fond of good drainage and avoid waterlogging. After leaving the house in spring, the sun is softer, and azaleas should be shaded properly around noon. After summer, azaleas should be placed in a ventilated and cool place. In summer, reed curtains, bamboo curtains and sunshade nets should be used to shade the sun, and the curtains should be opened before 8 am and after 5-6 pm. Because rhododendrons belong to semi-negative flowers and trees, young leaves are easy to be burned in the hot sun. If exposed to strong light for a long time in summer, the branches and leaves will wither, the growth will stagnate, and in severe cases the whole plant will die. In autumn, the intensity of sunlight gradually weakens. Before 9: 00 a.m. and after 5: 00 p.m., rhododendrons can see more sunshine, and put them in sunny places in late autumn to promote flower bud differentiation. Rhododendron is not cold-resistant, so it should be moved indoors between cold dew and first frost and placed in a sunny place. At the beginning of entering the room, pay attention to opening the doors and windows for ventilation. If left in the shade for a long time, it is easy to fall off. The suitable room temperature in winter is about 65438 00℃. The room temperature of most varieties is not lower than 5℃, but Rhododendron occidentalis is afraid of cold, and the room temperature for wintering should not be lower than 8℃. If the room temperature is too high in winter, the metabolism will be enhanced and the nutrition will be consumed, which is not conducive to the growth and development of the next year. Acid soil can be used to protect rhododendrons. Because rhododendrons like acidic soil, pH4.5-6.5 is more suitable. The basin soil should be loose, well drained and contain humus. Mix 6 parts of common humus soil, 2 parts of peat soil and 2 parts of river sand or use pine needle soil. At the same time, in order to improve the water quality, it is best to use water without minerals, such as rainwater or snow water. In addition to storing rainwater and snow water, acidified water, that is, 100 kg of water plus 0. 1% ferrous sulfate, can be irrigated all year round. If the acidity is not enough, add less vinegar. How to water: (1) Using trapped water means drying water and azaleas at the same temperature. Fish tank water, rainwater and river water are also acceptable. (2) Don't water the soil. Don't be too dry. If it is too dry, the leaves will wither. (3) The water must be poured thoroughly. (4) Winter and summer are different. Leaves are good in winter and wet in summer. It is not suitable to water more at flowering stage, which is easy to drop buds and die early; When the wind is dry in spring and autumn, the atmosphere will be sufficient. Pay attention to spraying water on the leaves and the ground to keep a certain humidity. During the growth period of rhododendron, alum fertilizer water is applied every 10- 15 days, or 0. 1%-0.2% potassium dihydrogen phosphate solution can be alternately sprayed on leaves.
Question 7: How to cultivate azaleas? Rhododendron is one of the top ten famous flowers in China and is known as "the beauty of flowers". There are many kinds of azaleas, which are luxuriant and colorful. Mainly distributed in the southwestern provinces of China, it is mainly divided into four categories: Mao Juan, Dong Juan, Xia Juan and Xi Juan, among which Xi Juan is the most beautiful flower among the cultivated types. In recent years, with the rise of flower industry, rhododendrons have also been widely cultivated in the northern region.
1, reproductive technology
(1) Cutting propagation is the most widely used propagation method in Rhododendron cultivation. Generally, in May and June, strong semi-lignified new branches, about 5-8 cm long, are cut off, and the lower leaves are cut off, leaving 2-3 upper leaves as cuttings. It is best to soak the base of cuttings in solutions such as indolebutyric acid or ABT rooting powder, and then insert them in loose and breathable acid soil rich in humus, and keep the temperature at 20-25℃ and cover them.
(2) Splitting of shoots For rare varieties that are difficult to survive, such as Xi Juan, the shoots are cut off for about 3~4 cm as scions, the base is cut into wedges with a sharp knife, and the shoots are split with Mao Juan as rootstock, and then wrapped with plastic film in the shade, and the scion and rootstock are covered with plastic bags for moisture preservation.
2. Fertilizer and water management requires acidic soil (soil PH should be 5.5~6.5) for the growth and development of rhododendron. Because the soil in the north is mostly alkaline, the basin soil needs to be mixed with humus soil such as rotten pine needle leaf soil. The root system of rhododendron is whisker-like fine root, which requires strict fertilizer concentration and water quality. Fertilization should follow the principle of timely and appropriate application of thin fertilizer. In order to promote the growth of branches and buds before flowering in spring, phosphate fertilizer can be applied once a month. After flowering, apply 1~2 times of mixed fertilizer mainly containing nitrogen and phosphorus. Apply phosphate fertilizer 1~2 times in bud stage from September to June. In the growth period and flowering period, there are more requirements for fertilizer and water. In winter dormancy and slow growth in summer, fertilizer and water should be controlled to prevent root rot. Rhododendron likes a humid and cool environment, and the climate in the north is dry. It is necessary to water and spray drugs in time to maintain a high air humidity. It is best to water the flowers with alum fertilizer and rainwater, and add a small amount of ferrous sulfate and vinegar to ordinary water. Watermelon or tomato can also be cut into small pieces for application, which also has a good effect on improving soil quality and flower quality.
3. Shaping and pruning In order to speed up the flowering of plants, rhododendrons often promote the development of new branches by picking their hearts. For those flowers that are surrounded by flowers and affect the flower shape, the buds can be thinned early, which will not only make the flowers bright in that year, but also help the plants to grow and bloom in the next year. Rhododendron has strong germination, and its branches seriously affect the growth and development of plants, reducing their ornamental and commercial properties, which need to be adjusted by pruning. Pruning is usually carried out in spring and autumn after flowers wither. Prune dead branches, oblique branches, clustered branches and some cross branches to avoid nutrient consumption and make the whole flower full.
4. The flowering period controls the bud differentiation of Rhododendron in autumn. Through cold storage and heating treatment, the flowering period can be artificially controlled. To make rhododendron blossom ahead of time, we can move it to greenhouse for cultivation, control the temperature at 20-25℃, and often spray water on the branches and leaves to keep the relative humidity above 80%, so that it can bloom after one and a half months. In order to delay the flowering of azaleas, azaleas that form flower buds can be preserved at low temperature, kept at 2~4℃, watered when the basin is dry, moved out in summer and autumn, and can bloom in two weeks.
Question 8: Feeding methods, breeding methods and precautions of rhododendrons: Rhododendrons, also known as Yingshanhong and Shan Shiliu, are evergreen or ordinary green shrubs. According to legend, there was a cuckoo in ancient times, which crowed day and night, hemoptysis, and dyed flowers all over the mountain, hence the name. Rhododendrons usually bloom in spring, with 2-6 flowers in each cluster. Corolla is funnel-shaped, with red, pink, apricot, snow blue, white and so on. , gorgeous colors. Born under sparse thickets or pine forests in mountainous areas at an altitude of 500-1200 (-2,500) meters, it is a typical indicator plant of acidic soil in south-central and southwest China.
Rhododendron is a shade-loving plant, and direct sunlight is not good for its growth. It is best to choose a shady place. . Potted soil consists of humus soil, sandy soil and the same soil (7:2: 1) mixed into cake fertilizer, manure and so on. , stir well and plant. Generally, change pots or soil in March in spring. The area south of the Yangtze River is mainly planted in the ground, which should be planted before germination in spring. The place should be in a ventilated and semi-cool place. The soil should be loose and fertile, rich in humus, and acidic sandy loam is suitable, and it is not suitable for water accumulation, otherwise it is not conducive to the normal growth of rhododendrons. After planting, be sure to water it.
temperature
Move out of the greenhouse in the middle and late April, first put it in the lee of the sun, cool in summer, or put it in the shade under the tree to avoid direct sunlight. The suitable growth temperature is 15-25℃, and the highest temperature is 32℃. From mid-June, autumn, 10 is moved indoors, and it is placed in a sunny place in winter. The room temperature is kept at 5- 10℃, and the lowest temperature cannot be lower than 5℃, otherwise it will stop growing.
water
Rhododendron requires the soil to be wet, not wet. Generally, in spring and autumn, cuckoos planted in the open field can be watered once every 2-3 days, and in hot summer, at least once a day. Do not use alkaline water for daily watering, and pay attention to the water temperature not to be too cold when watering, especially in hot summer, when watering thoroughly with cold water, the soil temperature suddenly drops, which affects the water absorption of roots and interferes with the physiological balance of plants.
After planting and soil improvement, water 1 time to make the roots fully contact with the soil, which is beneficial to the survival and growth of the roots. Pay attention to watering during the growth period, and gradually increase the amount of watering from March, especially in summer, always keep the basin soil moist, but don't accumulate water. Reduce watering after September, and then water after entering the house in winter.
humidity
Rhododendron likes the environment with high air humidity, but some Rhododendron gardens are built on both sides of squares and roads, and the air flows quickly and is relatively dry. It is necessary to spray water on Rhododendron leaves or the surrounding air frequently to keep the air around Rhododendron gardens moist.
Fertilize soil or land
At the end of winter and the beginning of spring every year, it is best to apply some organic fertilizer as base fertilizer to Rhododendron Garden. After the azalea blooms in April-May, because the plant consumes a lot of nutrients during the flowering period, with the germination of leaf buds, new buds are taken out and fertilizer can be applied every 15 days. After lodging, most branches have stopped growing. At this time, it is in the high temperature season, and the physiological activity is weakened, so topdressing can be stopped. After autumn, the climate is getting cooler and there is autumn rain, and the temperature and humidity are suitable for the growth of azaleas. At this time, topdressing can be carried out for the last time, and fertilization is generally not suitable after winter.
Rational fertilization is the key to raising rhododendron, preferring fertilizer but avoiding it. During the spring and autumn growing season, 10 times liquid water of pancake fertilizer should be applied every 1 0 day, which can be fermented with rice washing water, peel and vegetable leaves. In autumn, you can supplement some phosphorus and potassium fertilizers, and you can use fish and chicken viscera and meat washing water, rice washing water and some peels. In addition to the homemade household fertilizers mentioned above, you can also buy some household fertilizers to use, but remember to apply them "thinly". Apply dry fertilizer 1 time (small amount) before winter, and don't apply base fertilizer when changing pots. In addition, when watering or fertilizing water, tap water should not be used directly, but should be acidified (adding ferrous sulfate or vinegar) and then used when the pH value reaches about 6.
Question 9: How to raise azaleas to bloom more? 1, what kind of cultural soil is azalea suitable for?
The choice of soil is very important for the growth and development of rhododendron. There are many ways to mix cultivated soil for planting rhododendron, which varies with cultivated varieties, but the following conditions must be met: looseness, smooth drainage, good ventilation, rich acid soil and humus, and sufficient base fertilizer. Rhododendron usually grows vigorously in acidic loam. If it lives in alkaline soil, it will soon die of yellow leaf failure. Rhododendron is considered as an indicator plant of acidic soil. Generally speaking, humus soil belongs to acidic soil, and pine humus soil is the best, which is an ideal culture soil for planting rhododendrons. You can dig under the pine and cypress forests in mountainous areas, or you can plant a variety of pines and cypresses in the courtyard and borrow soil underground. Before use, add appropriate amount of sulfur powder and alum to improve its acidity before use. The soil with high humus content is most suitable for the growth of rhododendron. There are many humus, which can replenish nutrients in the soil in time, improve the soil structure, and make the soil retain water, fertilizer, ventilation, heat absorption and heat preservation. It can also reduce the harm of toxic substances in the soil and promote the root system of rhododendron to spread everywhere.
Black Mountain Mud is a new product produced in Tongguan Mountain, Yixing, Jiangsu Province and Fenghua, Zhejiang Province. It is most suitable for the growth and development of rhododendrons and is widely used everywhere. Culture soil can also be homemade. Take 2 parts of weathered mountain surface soil, fallen leaves 1 part, and dry dung of herbivores 1 part, mix them 1 year, and use them after screening off impurities. 3 parts of mountain bark soil, 3 parts of horse manure, 3 parts of deciduous weeds, and human manure 1 part can also be piled in layers, and screened for later use after 1-2 years. The prepared culture soil should be stored indoors to prevent the fertility from being reduced due to sun and rain.
2. What should I pay attention to when turning over azaleas?
Rhododendron cuttings should be put in flowerpots to survive. Pottery pots with good air permeability are the best, followed by purple sand pots, glazed pots and porcelain pots are the worst. Pay attention to the size of the flowerpot when serving, and avoid using large pots for small seedlings. If the pot is too big, the soil won't last long, the ventilation is not good, and the roots can't easily reach the pot wall, which will affect the development of seedlings. Generally, cutting seedlings can choose a pottery pot with a diameter of 10 cm, and then turn it into a flowerpot with a diameter of 15 cm after one year. Pay attention to the drainage layer when putting the basin. Cover the drain hole with ceramic tile first, then put in 1/3 coarse soil particles and add a little fine soil. Then put the rhododendron seedlings in, straighten the seedlings with one hand and put them in pots with the other. Pay attention to fill the soil only 2 cm below the mouth of the basin, and don't fill it too full for later watering. Finally, tamp the periphery of the basin and shake the flowerpot to make the basin surface smooth. After planting, water it once with a watering can. Be sure to pour when boiling water until water seeps from the bottom of the basin. If the water is not thorough, only the rotten layer is grasped and the inner layer is not wetted, which will make the potted flowers * * *.
There are two situations in which cuckoo turns over the pot. First, the seedlings grow up and the roots are full of pot soil, so it is necessary to expand the extension of root health. Usually, pay attention to whether the drainage holes at the bottom of the basin have roots sticking out. If there is, turn the pot upside down and turn the plants from a small pot into a big pot. Second, after potted flowers grow for 2-3 years, the contents of potted soil are exhausted. In order to supplement nutrients and improve soil, potted soil should be replaced.
Rhododendron flowerpots are generally turned over after climbing flowers in autumn or before pregnancy. When turning over the basin, remove some soil and pay attention to pruning the roots with sharp scissors. Old roots refer to those roots that are blackened and withered due to poor growth. However, it should be noted that when the seedlings turn over the pots, the roots cannot be trimmed. When turning over the pot, you should pay attention to the soil ball at the root. After putting the pot away, you should also pay attention to watering it thoroughly for the first time and let it dry thoroughly in the next few days. If it is too wet, the root incision will rot. Generally, only when new roots grow can normal irrigation be carried out. If you turn over the pot in autumn, it is best to turn it over in June of 5438+ 10. Although azaleas like to be cool, they should keep warm after turning over the pots in winter. If there is no shed, you can set up a shed in a ventilated place facing south to the sun, covered with plastic film, and spend the winter safely. Generally, the seedlings of Rhododendron in long pots turn once a year, and the big rhododendron turns every 2-3 years 1 time.
3. How to water azaleas?
Watering azaleas is a very important job. Because the root system of Rhododendron is weak, it is resistant to waterlogging and drought. Too dry or too wet is not good for plant growth, so special attention should be paid to controlling water quantity. If there is a lack of water during leaf development, the leaves of rhododendron will turn yellow and curly, and they will die if they are not well dried. If there is no water when flowering, the petals will be soft and shriveled, the flowers will droop, the colors will not be bright, and even wither and die. Therefore, water should be watered according to the weather, rain, dry and wet air, water content of basin soil, etc.
Watering time should be in the morning and evening, especially in hot summer, not at noon. Because the roots will be hurt by cold water. The principle of watering is not to dry, to water thoroughly, and not to water half. Spring and autumn are the growth, flowering and budding periods of Rhododendron, so the water supply should be appropriate, but don't pour too much water during flowering, because water will make the flowers bloom ... >>
Question 10: How to raise azaleas without dying? The flowering period of azaleas is mostly in winter and spring when the climate is cooler, and flower buyers also buy them in winter. Our climate in Shanxi is relatively cold. Most of the flowers sold by flower sellers are kept in flower pits or plastic greenhouses. The temperature in the flower pit is very high, and there is a big difference between the temperature in the flower pit and the temperature outside the flower pit. If the rhododendron leaves the pit without any protective measures, the flowers are easily attacked by the cold wind. As soon as the cold wind blows, the flowers catch a cold. A cold rhododendron leaves easily, especially the old leaves, which will fall off one after another. Preventive measures include: pay attention to protection when buying flowers to prevent flowers from catching a cold. Although the root system of rhododendron is rich, it is very delicate and as fine as an ox hair. This slender hair root is afraid of both waterlogging and drought. Too much watering will cause water accumulation in the basin, root rot caused by root tip blockage, and leaves are easy to fall off; If you forget to water it once or twice, the root tip will be easy to * * *, and it will also cause leaves to fall. If you find the leaves wilting and drooping, you can water them immediately. If the leaves don't stand upright, there is no hope, and the whole plant is likely to die. Solution: water it in time, and then water it when it is dry. When watering, don't let there be water in the basin, just water it thoroughly. If the basin soil is loose wool soil (pine needle soil in the northeast), water it once a day without leakage. Pine needle soil is breathable and easy to dry in the dry climate in the north, so it should be watered once a day. Du Fu doesn't like big fat. Too much fat will burn the root tip, and it is easy to cause defoliation and even death. It doesn't matter what fertilizer you use, but don't apply thick fertilizer or big fertilizer. Only apply thin fertilizer and little fertilizer once every half month. If the pot soil is new pine needle soil, no fertilization is needed for one year. The pine needle soil is very fertile and can consume azaleas for one year. Next spring, bloom will be replaced with new culture soil. Rhododendron is an acid-loving flower, and the pH value of the soil should be kept at 4.5-6. This is the key to raising azaleas in the north. If tap water is irrigated regularly, the soil will also become alkaline. Alkaline soil, alkaline water and azaleas are unbearable. In alkaline environment, rhododendrons not only shed leaves, but even die. If tap water is used, it must be acidified. The tap water in Taiyuan has a pH value of 7, which is neutral water, but it is alkaline when used for watering azaleas, so it is not suitable for regular use. Acidification method: 1000ml (1kg) tap water is added with 1g citric acid or 1g oxalic acid. Remember to use it now, not for long. This water can be used for a long time. Some people are used to using ferrous sulfate (black alum) to adjust the pH of soil, but it can't be used excessively, which will cause iron poisoning and be harmful to rhododendrons. Rhododendron is a shade-loving flower and can't be irradiated by strong light. In winter 1 1 By next April, you can see more sunshine indoors. It is impossible to see the sun. It will cause buds to fall off on cloudy days. Every May-10, you can only see the sunshine before 9 am. At other times, it needs shade maintenance. Under the scorching sun, young leaves are easy to be burned, and branches and leaves are easy to wither and fall off. In severe cases, the whole plant dies and has to be prevented. Newly renovated families should not raise azaleas, because harmful gases such as paint smell are easy to harm azaleas and cause deciduous leaves. As soon as the leaves of azaleas fall, there is no hope of living. In this way, azaleas are delicate and difficult to raise, but they are not like this. As long as we carefully grasp the above points, spray water on the leaves every day, increase the humidity and maintain a certain humidity (the relative humidity of the air should be kept above 70%), rhododendrons will grow well and the flowering period can reach 2-3 months.