The most suitable growth temperature is 15-25 ℃, but it stops growing below 8 ℃. When the temperature in winter is not lower than 4 ℃, it can be placed in the place with light from the north to the south, with less water and open ground for winter. In the north, flowers should be moved indoors or in plastic sheds for the winter.
Hewanglan likes light. If the light is not enough, it will easily lead to poor plant growth and affect flowering, so we must pay attention to the light.
In order to improve the quality of flower bud, the old leaves, diseased leaves and useless flower and fruit branches should be removed in time.
The growth in summer and flowering in autumn and winter should have enough water, and the watering should be reduced after flowering in early spring. In summer, water once a day. In the morning and evening, spray clean water on the leaves and the surrounding ground to increase the air humidity. Reduce watering in winter and keep the soil slightly dry. If let it continue to grow, water it more frequently.
In the growing season, every two weeks or so, the active humic acid liquid fertilizer should be applied.
In spring and autumn, the flowerpot should be placed in a sunny place for cultivation, while in winter, it should be more exposed to sunlight, otherwise it will directly affect the growth of leaves and flower color. However, in summer, due to the strong sunlight, the plants should be placed under the shade shed for maintenance, to prevent the leaves from being burned by the hot sun, affecting their ornamental value.
In autumn and winter, P and K fertilizers are mainly applied to Hewanglan, and potassium dihydrogen phosphate is used to add water to the root, which can make the plant grow strong and the flowers grow large.
Hewanglan is a large-scale potted ornamental flower with fast growth and developed root system. Generally, the seedlings should change pots and soil once a year. After the plants are formed, they should change pots and soil once every 2-3 years, and they should be divided in spring.
