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Choose loose, humus-rich acidic soil, plant rhododendrons to ensure that the potting soil is rich in humus-rich acidic soil, in addition to ensure that the soil is loose, good air permeability, good drainage, do not use clay or alkaline soil for cutting. The pH of acidic soils should be kept in between.
Maintain indoor temperature, there are many varieties of rhododendrons, and the temperature requirements are not the same, most rhododendrons like a warm environment, the suitable temperature is between 15 degrees and 28 degrees, the room temperature in winter is generally not lower than 10 degrees, and the rhododendron will stop growing when the temperature is too high, so it is easy to put it in a cool and ventilated place in summer, and it should be placed indoors in winter, and the indoor temperature can be increased if necessary to prevent frost damage.
Rhododendron prefers a moist environment, and during the flowering period from April to June, it is necessary to maintain sufficient water, and should be watered once a day in the evening. In the summer, when the climate is hot and dry, it should also be watered once a day because there is more evaporation of water. In spring and autumn, you can water it every 4 days.
In winter, rhododendrons enter the dormant period, which can reduce the amount of watering.
Do not over-expose, azaleas can not be exposed to the sun, placed in the sun should be given some shade, in case of burning branches and leaves, but the specific light should also change with the season, such as spring and autumn, the sun is not strong, give about 20% of the shade, if it is the flowering period and summer, to give 60% of the shade.
It is best to use natural water for irrigation, the better natural water is fish tank water, rainwater, pond water, river water, usually can store some "trapped water", trapped water is to put the water and rhododendron in the same temperature place for a day or two, so that the water can reach the same temperature as the soil, but also store more nutrients.
It should be ensured that thin fertilizer is applied diligently, rhododendron likes fertilizer but avoids thick fertilizer, do not apply more each time when fertilizing, in February and March to promote the growth of its branches and leaves, you can apply nitrogen, potassium-based light fertilizer, fertilize once every 10 days. April to June is the flowering period, should be mainly phosphate fertilizer, potassium fertilizer supplemented, fertilizer every 5 days. When the temperature is above 28 degrees, fertilization should be stopped.
Less fertilization should also be applied in winter. Some alum fertilizer water or a little ferrous sulfate should be added to the water every day to maintain the acidity of the potting soil.
Timely control of pests and diseases, the most common pests and diseases of rhododendron are military insects, red spiders, brown spot disease, etc., which should be found in time during the pest and disease period.
Replace the pot in time, when the rhododendron grows up, the pot should be replaced in time, so as not to affect the growth, generally 5 years old plants should be selected 5 inch pots, 7-10 years old plants should be selected 6 inch pots, more than 11 years old should be used 8 inch pots. When changing pots, you need to add some slow-release fertilizer appropriately.
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I don't have so many things to do, I have raised rhododendrons very well, as long as there is enough sunlight, and then don't water too much, wait for the soil to dry out and water it thoroughly, and put some flower fertilizer on it for half a month.
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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.
3. Improve soil quality.
4. Reasonable fertilization.
After the rhododendron blooms, the fertilizer applied is mainly nitrogen fertilizer, which can be applied every other month. Before the rhododendron blooms, more phosphorus and potassium fertilizers should be applied, and the amount of fertilizer must be grasped well, and the roots must not be burned.
5. Change pots and prune roots.
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Keep in a place where there is 6o% to 90% sunlight every day.
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