Sufficient water and suitable humidity are the necessary conditions for the growth of Gardenia jasminoides Ellis. In the growth period of the plant, it is necessary to increase the water content and spray water on the leaves, which can increase the air humidity. It should be noted that the winter watering should be properly controlled, not too much, to prevent freezing in the basin, to avoid frostbite.
Suitable temperature is the guarantee of Gardenia growth. The best growth temperature of Gardenia jasminoides Ellis is from 18 ℃ to 22 ℃, too high or too low temperature is not conducive to plant growth, so pay attention to ventilation and heat preservation.
Sufficient light is the premise of Gardenia growth. Gardenia is decorated with light loving plants. In spring and autumn, we should pay attention to increasing the light, which can make Gardenia exposed outdoors. In summer, we should avoid exposure to the sun, so as not to cause sunburn. In winter, we should control watering and avoid frostbite at the sunny place indoors.
Gardenia jasminoides Ellis is a typical acidophilic plant, so the pH value of soil should be controlled between 4.0-6.5 to create a slightly acidic environment for plants. In addition, the soil must be loose and fertile, good permeability, so that gardenia can breathe freely.
Fertilization is essential for the growth and flowering of Gardenia jasminoides Ellis. Especially in the period of vigorous growth, whether the fertilizer is sufficient or not plays a decisive role in the flowering of plants. In daily maintenance, can be applied once a half month bean cake fertilizer, peanut bran, etc.
Gardenia jasminoides Ellis likes fertilizer, but it is afraid of concentrated fertilizer, so it should be used appropriately. Before budding stage, the cake fertilizer water rich in phosphorus and potassium was added, and after budding, the fertilization was stopped to avoid the root burning and bud falling due to the excessive fertilizer concentration. During the vigorous growth stage, the cake fertilizer water was applied once every two weeks, and ferrous sulfate was applied in combination to avoid soil hardening and salinization.
Gardenias like light but are afraid of direct sunlight. After exposure to the sun, the leaves turn yellow, have sunburn spots or even fall off, so in summer, put the flowers in the shade.
