After the Rhododendron's flowers gradually wither, cut the remaining flowers as soon as possible to avoid wasting water and nutrients, so that the plant has the ability to store nutrients. At the same time, prune the branches, weak branches, diseased branches and branches that affect internal ventilation and light transmission, so as to avoid all kinds of diseases and insect pests caused by air non circulation.
Because Rhododendron is usually placed indoors in the flowering period, the light will be greatly reduced. But after the flower needs to increase the illumination gradually, but because the summer illumination is quite strong, therefore cannot put under the illumination immediately, needs to adapt the scattering light slowly.
Generally, there is less watering in the flowering period, but it needs to be increased slowly after flowering, so that the plant has sufficient water absorption. Generally, water once a day in summer and once in two to three days in autumn. In addition to daily watering, you can also spray water on the leaves to improve the air humidity.
After flowering, we need to apply fertilizer in time, usually every 15 days. When the temperature is high, the growth of Rhododendron slows down, so we can stop applying fertilizer