Stop watering the plants, but don't let them lack water. At this time, you can choose to spray water on the soil surface of plants, or spray water on the branches and leaves of plants to keep the environment around plants moist.

Second, slowly curing.

Make some preparations for the plants before changing the new pots. For example, don't remove the old soil from the roots of plants, but transplant the plants together with the old soil from the roots into new pots of soil. If it has been transplanted into a new pot soil, it is necessary to supplement the plant with nutrient solution and give it time to adapt to the new environment.

Third, replace the basin soil.

Change the plants to new soil once a year or so. Before changing the new soil, you need to give plants some time to adapt to the new soil. Don't rush to water and fertilize after changing. When the plants are completely adapted to the new soil, you can supplement the plants with nutrition and water.

Extended data

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. ?

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. ?

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, and it is preferable to fertilizer. 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.

decrease

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.

blossom

If you want to see flowers in the Spring Festival, you can move the potted flowers to the sunny place at 20℃ in the greenhouse in June+10 in 5438 or 20 days before the Spring Festival. Other management is normal, and flowers can be seen during the Spring Festival. If you want to see the flowers in May 1 day, you can move the flowerpot indoors below 5℃ for cold storage before germination in early spring, move it to the sunny place in the greenhouse at 20℃ in April 10, and move it out on April 20th, so you can see the flowers on May 1 day. Therefore, the temperature can adjust the flowering period, and it will open at four o'clock as you like. In addition, the plants cut immediately after flowering can bloom in late June at 65438+ 10; If pruned in the peak season, the flowering period can be delayed by about 40 days; If pruning is combined with cutting, the flowering period can be postponed to February of the following year. Therefore, pruning in different periods also affects flowering time.

Resources: Azalea Baidu Encyclopedia