Rhododendron normally blooms in April to may, so you should pay attention to it in April or so! The flowering period of Rhododendron can be maintained for about 40 days, and the temperature can be reduced and the flowering time can be delayed if conditions permit.
During the blooming period of Rhododendron, rain should be avoided, especially the outdoor maintenance should be moved to indoor or rain shelter. It is easy for Rhododendron to lose its color and affect its view.
In the early stage of flowering, the Rhododendron should be moved to a place with sufficient scattered light for maintenance, and it should not be directly put in the sun, otherwise, the color of the flowers will become lighter, or even the petals will be burned. In addition, the relative humidity of air around Rhododendron should be maintained, and water can be sprinkled to the ground frequently, but do not carelessly splash water on branches and leaves or flowers.
When the potted Rhododendron does not bloom, most families will choose to put it on the terrace for maintenance. When it blooms, they will want to move to the room to enjoy the flowers, but the time for entering the room is exquisite. Usually, when 1 /3 of the flowers on the plant have bloomed, the plant will be moved to the place with sufficient indoor light, and moved to the room too early. Rhododendron will affect the flowering due to the lack of light, resulting in a dim color.
After moving to the indoor, always ventilate. At night, the plant can be moved to the outdoor (terrace) to receive the night dew.
During flowering, the degree of dryness and wetness of basin soil should be kept relatively stable, not too dry, not often wet, otherwise it will affect the quality of flowering and shorten the flowering period.
When rhododendron flowers have all opened, or even some have begun to wither, it is necessary to remove all flowers in time to ensure the normal growth of plant nutrients. At this time, don't feel impatient. The most beautiful time of flowers has passed. The flowers are still on the branches, only consuming nutrients. The ornamental value is not great.
After the flowers are removed, the plants are moved to the outside, and tobujin solution is sprayed for pest control. After one week, the mixture of nitrogenous fertilizer and ferrous sulfate can be used. Then normal management is available. This kind of flower cultivation can avoid the premature aging of plants, and can bloom normally next year.