Question 2: How to prune azaleas 10? First, bud removal. When rhododendron is still a seedling for 2 ~ 4 years, cutting off buds can accelerate the formation of skeleton. It is beneficial to the formation of plant pattern in the future. Second, pruning time. Adult azaleas are usually pruned after flowering. Third, trim long branches. Too many branches will affect the beauty of azaleas and make paper branches grow out of order. Pruning long branches after flowering can control the shape of plants well. Prune thinly, so that the growth shape is good. Fourth, prune the weak branches. If the branches and leaves turn yellow, withered or damaged, they can be cut off. This is conducive to the healthy growth of the whole pot of flowers. Fifth, pruning abnormal branches. Deformed branches must be cut off. Failure to trim will affect the growth of healthy branches. Make the appearance ugly.
Question 3: How to prune the long buds on the branches of azaleas should not be cut, unless the trees are beautiful, they can be cut less appropriately.
Trim and cut off dead branches, weak branches and weak branches below.
Question 4: Do azaleas need pruning after flowering? Mainly used for removing residual flowers.
1, Introduction of Rhododendron
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. Rhododendron likes cool, humid and ventilated semi-cool environment, and is afraid of extreme heat and cold. The suitable growth temperature is 12℃ to 25℃. When the temperature exceeds 35℃ in summer, the new shoots and leaves grow slowly and are in a semi-dormant state. Sun protection is required in summer, and attention should be paid to keeping warm and cold in winter. Avoid exposure to the scorching sun, and it is suitable for growth under scattered light with low light intensity. If the light is too strong, the young leaves will be easily burned, and the old leaves will also be scorched, which will lead to plant death in severe cases. Cold-proof measures should be taken when planting rhododendron in the open field in winter to ensure its safe overwintering. Among the ornamental rhododendrons, Rhododendron occidentalis has the weakest cold resistance, and freezing injury is easy to occur when the temperature drops below 0℃. The crown is funnel-shaped, with red, light red, apricot red, snow blue, white and so on. , the color is lush and gorgeous. 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.
2. Rhododendron pruning
Pruning is an important measure in daily maintenance management, which can regulate growth and development, thus making growth vigorous. Daily pruning needs to cut off a few diseased branches and delicate old branches, combined with crown shape to delete some over-dense branches, which is beneficial to plant growth. The cuckoo garden should be inspected frequently, and the dead branches and diseased branches should be removed in time to reduce the spread of pests and diseases in the cuckoo garden.
Pick buds in time during bud stage, so as to concentrate on supplying nutrients and promote colorful flowers. Pruning branches is usually carried out in spring and autumn. Cut off cross branches, over-dense branches, overlapping branches and weak branches, and remove residual flowers in time. Plastic surgery is generally a natural tree, with a little artificial modification, which is arbitrary because of the tree shape.
Question 5: How to prune azaleas?
Rhododendron has a strong ability to sprout new buds and grow long branches, so it should not be allowed to grow wantonly. It should be controlled and adjusted by reasonable pruning. Pruning can not only maintain a beautiful tree shape, but also prevent unnecessary consumption of nutrients and maintain the vigorous vitality of the tree.
Pruning methods usually include: core removal, bud stripping, bud wiping, branch thinning and short cutting;
Picking: when the branches grow to a certain extent, remove the top, control the top advantage and promote their germination and branching;
Bud sowing: when there are too many buds, adjust some small buds and side buds to prevent excessive consumption of nutrients and excessive overlapping and crowding of buds, and ensure the flowering quality of main buds;
Bud smearing: The buds on the new branches of Rhododendron are divided into terminal buds and lateral buds, and each bud can produce a Xinsheng Duan branch. According to the direction of buds and the needs of plant type, some buds can be properly erased to reduce the density of branches, which not only avoids excessive consumption of nutrients and excessive weak branches, but also ensures the healthy growth of strong buds.
Sparse branches: The branches of Rhododendron are criss-crossed, and the branches and leaves cover each other, which affects ventilation and light transmission and is easy to breed pests and diseases. Too dense branches, slender branches, concentric branches, cross branches, pest branches, etc. must be properly thinned. Ensure the healthy growth of plants;
Short cutting: Cutting off some branches that are too long and prosperous will control the plant type, and also help the short cut branches sprout new lateral branches, promote the beautiful plant type and improve the ornamental value.
The pruning of rhododendron in small seedling stage is mainly based on coring, that is, coring is carried out every year when the annual branches grow to about 5 cm to promote branching. 2-3 lateral buds will grow on the branches left after core removal, so that after 2-3 years of cultivation, the crown of the plant can be shaped. But don't pull out the seedlings that grow too thin, otherwise it will only weaken the sprouted lateral branches, which is not conducive to future growth. The buds in the small seedling stage should be picked to avoid consuming more nutrients and affecting plant growth. In seedling stage, thinning should be combined, especially for tree species and varieties with many branches, and the over-dense branches, sparse branches and diseased branches in the crown should be cut off in time.
For plants that have formed a certain plant type, they should be pruned after flowering in spring or turning over pots in autumn. After azaleas are in full bloom, their residual flowers often last for a long time, which will only waste nutrition. It is necessary to cut off the residual flowers as soon as possible, so that more nutrients can be supplied to new branches and leaves.
For Xia Juan, who has a shorter plant type and more transverse branches, more roots and branches will sprout in spring, which will consume nutrients and disturb the plant type. In order to supply nutrients to the main branches and flowers, these twigs should also be cut off. As for flower buds, it is best to leave 1 big flower per branch and pick the rest. When Mao Juan is used as the rootstock to graft Rhododendron, attention should be paid to removing the budding branches of the rootstock to ensure the normal growth of the upper scion. In addition, the branches should be thinned properly to improve the ventilation and light transmission conditions of the crown, concentrate nutrition and enhance the growth of plants. There is also a third point: cut short the scurrying branches above the crown and the long branches that grow outside the crown to maintain a good plant shape.
Rhododendron buds are planted at the top of branches, and short cutting will make branches flowerless, so you can't use too much. Many new branches will grow near the incision, so it is necessary to screen them in time and remove some branches.
When the growth of adult plants decreases, nutrients can be concentrated through thinning to maintain a certain growth momentum; At the same time, proper shrinkage and shearing are carried out to make the plants sprout strong new branches, or they can be updated after cutting them short by drawing long branches. .
Question 6: How to prune azaleas? Rhododendron can be divided into four categories: 1. Rhododendron, also known as Rhododendron pubescens and Rhododendron macrophylla, is a big flower variety of Rhododendron in spring. The second is Dong Juan, which belongs to Rhododendron rockii and has the smallest flower pattern, and is listed as a small flower variety of Chunna. The third species is Xia Juan, which blooms in May-June, and is the latest one, so it is called Xia Juan. The fourth species is Rhododendron occidentalis, which is called Rhododendron occidentalis because it is bred in Holland and Belgium in western Europe. Some of them are called Belgian Rhododendron or Four Seasons Rhododendron.
At present, most products on the market are Xi Juan. Xi Juan is an improved variety with large flower pattern, many varieties of colors, long flowering period, good maintenance and few flowers in summer, so it is a very popular variety. It is characterized in that each new branch, regardless of its length, will form a bud when it grows to 150- 170 days, so flowers can be seen all year round, but the most flowers are concentrated in winter and spring.
Rhododendron has a strong ability to sprout new buds and grow long branches, so it should not be allowed to grow wantonly. It is necessary to prune, control and adjust reasonably and maintain a reasonable and beautiful tree shape. Pruning can also prevent unnecessary nutrient consumption and make trees grow vigorously. There are five pruning methods: core removal, bud stripping, bud wiping, branch thinning and short cutting. Generally, it is enough to wipe buds, twigs and cut short.
Brush buds-leave one or two buds on each branch, and wipe off the remaining buds, thus reducing the density of branches. Sparse branches-that is, pruned branches, slender branches, overlapping branches, crossed branches, diseased branches and weak branches. Short-cut-that is, cut short the long branches and the branches that are growing too vigorously, so that they grow wildly, thus making the trees beautiful and improving their ornamental value.
The purpose of pruning is to make the branches sparse, and too many branches and leaves will affect lighting and ventilation, which is not conducive to growth and flowering, and will also attract pests and diseases.
Question 7: How to prune azaleas? Rhododendron has a strong ability of germination and regeneration. Every 1-2 years, after the flowers wither, it is necessary to change a flowerpot larger than the original one and put in new culture soil. Experienced florists often combine pruning and shaping when changing pots, and consciously prune a beautiful tree. When cutting sulfur, close branches, cross branches, twigs, drooping branches, creeping branches and insect branches should be cut off, which is not only for the beauty of the tree, but also for improving ventilation and light transmission conditions; Save nutrients, make the main branches strong, so as to sprout new buds as soon as possible, so as to achieve the goal of more flowers, bigger flowers and brighter colors in the coming year. After azaleas are in full bloom, their residual flowers often last for a long time and consume a lot of nutrients. In order to prevent nutrients from being consumed in vain, the residual flowers should be picked in time to supplement nutrients for the needs of new germination technology. Besides, Xia Juan, who has a shorter plant, has many branches. Every spring, many branchlets will grow on the branches of the roots. In order to concentrate nutrients on the main branches and flowers and make them grow faster and bigger, these branchlets should also be cut off in time. If there are too many flowers, remove all the branches except each branch with a length of 1. What kind of trees to prune can be decided according to your own preferences. Do you have an umbrella? Shape, circle, semicircle, pagoda, square, etc. , you can choose at will, and then trim it deliberately.
Question 8: How to prune azaleas and care for the cultivation techniques of azaleas in northern China.
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 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 they are 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.
Respondent: Edogawa Xinyi-Director Department Grade 9 1-26 14:40.
Rhododendron is one of the representatives of acid-loving plants, with a pH value of 5.5-6.5, and likes a cool, humid and well-ventilated environment. The suitable growth temperature is 13℃-25℃, and the air relative humidity should be kept at 60%-70% during the growth period, and the relative humidity can reach about 80% when it is about to bloom.
Rhododendrons like light, but avoid direct glare. Shading should be appropriately increased in spring and autumn, and it should be around 70% in midsummer. Rhododendrons should be placed outdoors for ventilation in summer. Rhododendron prefers light fat to thick fat. During the growth period, it is advisable to apply it thinly and frequently, and it is best to use farmyard manure, such as liquid fertilizer after soaking and fermenting bean cake water, horseshoe palm water, various vegetables, chicken feathers, fish viscera and other impurities. Rhododendron is a fibrous root, slender and weak, so it can't use sticky soil, and it likes loose, breathable and breathable acid soil. Humus soil such as mountain mud mountain, larch leaf soil, or artificially prepared culture soil can be used in the north. Prune the flowers when they fall, and control the flowering period in order to make them more beautiful. The cut annual branches can also be propagated by cutting.
Rhododendron leaves are yellow on the front and have red spots on the back, which is harmful to red spiders and will seriously shed leaves. Spray 40% triclosan 1000 times solution every seven days, and spray it for three times continuously to remove it. If the leaves are yellow and the veins are still green, it is a symptom of iron deficiency. & gt
Question 9: Is it normal for azaleas to grow leaves in spring? How to Prune Rhododendron 10 The buds of Rhododendron are generally in spring and autumn, mainly in spring. Rhododendron is resistant to pruning, and its hidden buds are easy to germinate after * * *, which can be used to control the tree shape and revitalize the tree. Pruning is usually carried out before May, and new branches can form buds in the same year. If it is too late, it will affect flowering. Generally speaking, new buds that germinate around early autumn can still be lignified. If the new buds form too late, they are vulnerable to freezing injury in winter. Evergreen or deciduous shrubs.
Question 10: How to raise azaleas in summer and when to prune them? Rhododendron in summer is characterized by: liking acidic soil, moist and warm; Afraid of thick fat, afraid of exposure, afraid of drought and flood. In summer, azaleas should be cultivated in sunny and ventilated places in the morning and evening, and the rest of the time should be shaded and kept 50% transparent. Rhododendron likes high humidity environment, and the air humidity is not enough, which will cause Rhododendron to fall leaves. Try to keep the air humidity and soil moist in summer, and spray water on the leaves and surrounding environment 2-3 times a day. Pruning of Rhododendron In order to keep Rhododendron growing into a strong and beautiful plant shape, it is necessary to prune it properly. Pruning time is generally carried out after flowering, specifically: 1 Picked residual flowers must be removed in time after flowering to avoid unnecessary consumption of nutrients. Prune once after flowering. Pruning mainly includes pruning dead branches, residual branches, weak branches, too dense branches, too dense branches and long branches. Through pruning, the plants are robust, nutritious, ventilated and beautiful. 3 Precautions for Pruning 1) During the cultivation of Rhododendron, long branches and adventitious buds are often drawn from the base and root of the plant, which should be cut off at any time. 2) pruning should use sharp scissors, so as to ensure the smooth cutting. If possible, ointment can be applied to the incision to avoid infection. 3) If you are going to change pots for azaleas, you can prune them before changing pots. Pruning before changing pots is beneficial to plant survival and recovery.