After the temperature rising, the growth of Rhododendron regained rapidly, and gradually entered the flower bud differentiation stage and flowering stage. The management of fertilizer and water should follow the sequence of "Huabao" - clear water - "Huabao" - clear water ", with an interval of about 2-4 days, shorter interval in sunny or high temperature, longer interval in rainy or low temperature or no watering. Stop the supply of fertilizer after entering the seed stage.
In summer, there is high temperature all over China, but Rhododendron is not resistant to humidity and heat, so it will have a short dormancy in summer. At this time, it is not suitable to water more, and the basin soil should be kept slightly dry. Do not apply fertilizer when it is hot and humid to avoid root rot.
During the summer dormancy period, Rhododendron awoke in autumn and began to grow. At this time, the water and fertilizer management needs to be followed up quickly, with an interval of 1-3 days for watering, and the liquid fertilizer can be applied frequently with thin application.
Although it is still growing, the low temperature will slow down its growth rate and require little fertilizer and water, and even control fertilizer and water. The fertilizer and water management shall be carried out in the sequence of "Huabao" - clear water - clear water - "Huabao" - clear water - clear water, with an interval of about 4-7 days. The watering time shall be arranged as far as possible when the temperature is high at noon on a sunny day.
Friends in the North should pay attention to do some protective measures for Rhododendron to prevent being injured by freezing. If you want to cut, you can cover the cuttings with film.
