Key points of maintenance of rhododendron, maintenance of rhododendron

Care for azaleas requires attentionModerate light, ventilation, air humidity, pests and diseases, and remember to fertilize.

1. Appropriate amount of light

If in the process of raising rhododendrons, the tips of new leaves are blackened, easy to fall off, it is likely to be caused by strong light irradiation, caused by rhododendrons with the rise of temperature, can not be placed in the sun at noon, especially in summer when the temperature is high, spring and autumn can bask in the sun, in summer, it is necessary to shade the light, to achieve a 70% shading, in addition, if the potting soil is short of water, there is no watering for many days, plus the potting soil compaction, it will also cause leaf loss. So you can't go without watering it for a long time.

2. Keep ventilation and ventilation

If the place where the potted azaleas are placed, the ventilation is not smooth, and the potting soil is waterlogged, the light is seriously insufficient, and the low light environment will also cause the leaves to turn black, fall off the leaves, and the state is extremely poor. So keep it ventilated, at least astigmatism, and the potting soil should not be extremely dry but not overwatered.

3. Maintain a certain air humidity

If the air is dry and the weather is dry, in addition to watering in time, you can also spray some water to maintain a certain air humidity, because an excessively dry environment can also cause dry leaves to be black-tipped.

4. Prevention and control of pests and diseases

If the tip of the rhododendron leaf is black, the leaves are dropped, and the leaves are dry, it may also be anthracnose, so some fungicides can be sprayed, such as ordinary carbendazim, methyl tobuzin, etc. Raising rhododendrons, the soil should be acidic, maintain good ventilation, a certain air humidity, suitable for growing in a temperature of about 20 degrees, usually the light can not be too weak, not too dark, the light is too weak, the water is stuffy, it is easy to let the leaves fall off when touched, and even the leaves fall off.

5. Fertilize rhododendrons

Rhododendron can not be applied thick fertilizer, it likes light fertilizer, can not be planted with too cohesive soil, fertilization can be done with some soybean cake water or some organic fertilizer water after fermentation of fish and fruits, you can. In this way, the azaleas do not lose their leaves, do not have black tips, and grow lush branches and leaves and bloom more.

The maintenance methods of rhododendron include: bright astigmatism, proper watering, application of fertilizer, temperature requirements, and suitable soil.

1. Bright astigmatism

Rhododendron likes to stare at filial piety to grow in a place with bright astigmatism, and the place where it is placed should ensure good light conditions, and contact with astigmatism can be conducive to the synthesis of nutrients and help the growth and development in the later stage. Pay attention to the strong light in summer, must not be directly placed under the scorching sun, pay attention to shade and avoid light.

2. Proper watering

Rhododendron must be kept moist in the growing season, spring and autumn growing season can be watered every three or four days, the water evaporates quickly in summer, you can water every day, in winter the temperature decreases, the evaporation rate slows down, watering needs to be reduced, you can wait until the soil is dry and then watered.

3. Apply fertilizer

Provide sufficient nutrients to ensure good growth, apply thin fertilizer frequently according to the needs of growth, and properly supplement nutrients to promote vigorous growth. Be careful not to apply thick fertilizer and raw fertilizer to avoid root rot and death.

4. Temperature requirements

The temperature should be kept at about 15-28 degrees, and the temperature should be kept at a good temperature in summer, not more than 32 degrees, and the temperature should not be lower than 5 degrees in winter to avoid frostbite on the plants.

5. Suitable soil

Rhododendron is a typical acid-loving plant, so planting must provide acidic soil, you can prepare at home, choose sandy soil, garden soil, peat soil and other mixed preparation, to ensure good porosity and air permeability.

The maintenance method after the azalendron flowers blooms is: appropriate watering, and enough light to talk about the limbs.

1. Watering appropriately

It should be noted that the root system of rhododendrons is mostly capillary roots, and it can not be watered with large water when watering, and if it rains, it should also be drained in time to prevent the root system from rotting. In spring and autumn, you can water once every 1 2 days, and you can water once in the morning and evening when the summer is hot, and it is best to use the method of sprinkler irrigation when watering, which is more conducive to the absorption of plants.

2. Sufficient light

Rhododendron prefers a semi-shady ring and can usually be placed in a place where there is plenty of sunlight. Rhododendron is afraid of strong light, so it must be properly shaded and ventilated during the hungry summer. Too much light may burn the leaves, causing them to dry up and die.

Rhododendron cultivation skills:

1. Prune in time: cut off the residual flowers of rhododendrons, overly long dense branches and dead leaves.

2. Reasonable watering: Keep watering the azaleas every 4-5 days.

3. Sufficient light: put the azalea in a sufficient astigmatism environment to prevent direct light or strong light.

4. Improve soil quality: add ferrous sulfate to the water when watering to improve soil quality.

After the rhododendron blooms, it is maintained from pruning the residual flowers, supplementing nutrients, and changing the potting soil.

Pruning residual flowers: After the rhododendron blooms and fails, the residual flowers and leaves and unopened flower buds should be cut off in time, and the pruning time should be 70-80% when the whole flower is open, and then prune after all the flowers wither, otherwise it will consume too much nutrients and affect the growth of the plant.

Supplementary nutrients: Rhododendron should be supplemented with nutrients immediately after the blooming failure, the plant did not fertilize in the winter of soaking, and the flowering consumed a lot of nutrients, the rhododendron at this time is weak, lack of nutrients, need to apply ammonia-based fertilizer in time, and add ferrous sulfate solution to it.

Potting and soil: for azaleas to repot and change the soil generally only need to be carried out once every 1-2 years, the soil can be mixed with mountain mud and humus, and then mixed with river sand, and the pH value of the soil is required to be about the same, after changing the soil, the azalea will be placed in a ventilated and cool place to slow the seedlings for a week.

Morphological characteristics of rhododendrons

deciduous shrub, 2-5 m high; The branches are numerous and slender, densely covered with bright tan flattened and rough hairs. Leaves leathery, often clustered at the ends of branches, ovate, elliptic-ovate or retrograde ovate or obovate to inverted-lanceolate, long cm, cm wide, apex short acuminate, base wedge-shaped or jujube clump broadly wedge-shaped, margins slightly inversely curled, finely toothed, dark green above, sparsely covered with rough hairs below, pale white below, densely covered with brown rough hairs, midrib concave above, convex below; The petioles are 2-6 mm long and densely covered with bright tan flattened coarse hairs.

The flower buds are ovate-shaped, with rough hairs above the middle of the scales, and eyelashes on the margins. Flowers: 2-3 clusters at the top of branches; The peduncle is 8 mm long and densely covered with bright brown rough hairs. The corolla is broadly funnel-shaped, rose, bright red or dark red.

capsule ovate, up to 1 cm long, densely covered with rough hairs; Calyx is preserved. The flowering period is from April to May, and the fruiting period is from June to August.

1. In winter, the azaleas need to be moved indoors for maintenance. Because although it has some ability to withstand cold sailing, the outdoor temperature is very low in winter, and it is easy to get frostbite. Usually, before the temperature drops to 6, it can be disturbed and moved indoors.

After entering the room, it should be kept in a place of 6-10 years. It is best not to put it in a place that is too hot.

2. In winter, the number of times it is watered should be appropriately reduced, as well as the amount of water each time. Because at this time it grows very slowly and absorbs water more slowly. If there is too much water, it cannot be absorbed in time, and it is easy to accumulate in the soil, causing root rot.

Usually, water is given every 15-20 days.

3. In winter, it should be placed in a better location at home for maintenance. Don't leave it in the dark for a long time, otherwise it may suffer from poor growth due to lack of sunlight for a long time. Because the light during this slow stare time is not strong, it is recommended to place it in a location where it can get sunlight throughout the day, if possible.

Rhododendron cultivation method.

1. Potting soil: It is more appropriate to use a tile pot for pots, and it is necessary to use the kind of hole at the bottom and the ventilation effect is better. Since rhododendrons have shallow roots and grow slowly, smaller pots can be used so that there is no waste when watering and it is more conducive to growth.

Potting soil should be used looser, well-drained acidic soil, can also be used to part of the humus, sawdust, when filling the potting soil, should pay attention to the bottom with coarse soil, on the top with fine soil. In terms of refurbishing potting soil, it can be once every 1 to 2 years for new planting, and once every 3 to 5 years for more than 10 years, or it can not be replaced.

2. Watering: The roots of azaleas are very thin, and the absorption capacity is also poor, and the water must reach the flower body through the absorption of the roots, so the watering of azaleas, in addition to the dormant period in winter, should be done diligent watering and moisturizing, especially in the growth period after March every year, the flowering period, and the high temperature period from July to September, should increase the number of watering, it is best to ensure that watering is about twice a day, and the autumn and winter can be appropriately watered. It should be noted that the tap water used to water the flowers is best stored with utensils for one to two days before being used to water the flowers.

3. Light: Rhododendron breeding process should ensure that its light is sufficient at any time, because the light is sufficient to bloom well, of course, the hot summer can not be taken out to expose to the sun, but should strengthen the work of shading, in case of sunburn, in addition, in the flowering season should also be properly protected, can be protected by light nets, and the flowering period can not be exposed to the sun.

4. Fertilization: Proper fertilization can make rhododendron breeding grow thicker and faster, and most indoor flower farming, the fertilization principle of rhododendron is also thin fertilizer and more application, that is, a little less at a time, you can apply more times. During the old leaves turning green, flowering, and after flowering, fertilize two or three times appropriately, and do not fertilize during the hot weather.

Rhododendron cultivation and fertilization can be used grass juice water, fishy water, rapeseed cake and other materials. In addition, if a diseased branch is found, it should be pruned in time to prevent it from affecting the healthy growth of other branches.

5. Pest removal: in the breeding process of rhododendrons, the most important pests are the sub-ball crown net bugs, aphids, etc., when insect pests are found, the amount is small and visible to the naked eye, can be wiped off with a wet cloth strip, and if the amount of pests is serious, you should go to the local pharmacy to buy insecticide liquid for effective treatment, and pay attention to let the rhododendron pots be placed in a ventilated, well-lit position, placed in a dark place, which is also one of the causes of insect pests.

Rhododendron watering should be kept moist and only changed to "dry and wet" watering in winter when the indoor temperature is relatively low, that is, it should be watered when the topsoil is dry. If it is a substrate of pine needle soil, it needs to be watered more frequently, and if it is peat soil, it needs to be controlled

Flowers and plants should be flexible in watering and do not be rigid and make trouble!

Rhododendron is actually not difficult to raise, as long as you pay attention to a few key points of reverence:

1. Soil: The soil must be weakly acidic soil (pH value, if neutral or weakly alkaline soil is used, it will grow poorly at the light level, and it will definitely die if it is heavy.

2. Water: Water must also be weakly acidic or neutral; In the north, be sure to pour a 1:1000 solution of ferrous sulfate or white vinegar every ten days or so to keep the pH of the soil in the weakly acidic range.

In addition, watering should adhere to the principle of not drying and not watering, and no water should be accumulated.

3. Light: Many people think that azaleas like shade, but in fact, azaleas need strong light in spring, autumn and winter, and only when the temperature is high in summer, they should be shaded; When the light is insufficient, the flower may bloom and slip into a small one, or change from a heavy petal to a semi-double petal, and from a semi-double petal to a single petal.

4. Fertilizer: The root system of rhododendron is weak, so it must be applied diligently with thin fertilizer, and thick fertilizer should not be applied indiscriminately, otherwise it will die.

5. It is best to change the potting soil once a year, if the potting soil is not changed for two years, the light will grow poorly, and the heavy will die.

6. Rhododendron likes moisture, but if the ventilation is poor, red spiders may be born; If there is not enough light, brown spot disease may occur; Spray immediately after discovery.