2. Watering: The roots of Rhododendron are very thin, and the absorption capacity is poor. Water can only reach the flower body through the absorption of the roots. Therefore, in addition to the winter dormancy period, the rhododendrons should be watered frequently, especially in the growth period after March, flowering period and high temperature period from July to September every year. The number of watering times should be increased, and it is best to ensure that it is watered twice a day, and it can be watered less in autumn and winter. It should be noted that the tap water for watering flowers should be stored in a vessel for a day or two before watering 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. Apply fertilizer two or three times when the old leaves turn green, during and after flowering, and never apply fertilizer when the weather is hot. Rhododendron cultivation and fertilization can use grass juice, fishy water, rapeseed cake and other materials. In addition, the weak branches should be cut off in time so as not to affect the healthy growth of other branches.
5. Pest control: In the process of rhododendron cultivation, the main pests are bugs, aphids and so on. When pests are found, if the number is small and visible to the naked eye, they can be wiped off with a wet cloth. If the number of pests is serious, you should buy insecticidal liquid from the local drugstore for effective control, and pay attention to placing the azalea flowerpot in a well-ventilated and well-lit place, which is also one of the reasons for the pests.