French perfume flowers are suitable for planting in peat soil or rotten loam soil with good ventilation and loose soil.
The growth temperature of French perfume flowers is about 18-28 degrees Celsius, and the night temperature is relatively low, which can be maintained at 10-20 degrees Celsius.
When the temperature is too high or too low, the growth will be restrained, especially when the temperature is too low for a long time, the new seedlings will enter the dormancy state, and the new seedlings will be relatively less cold resistant, and the leaves will be dormant when the temperature is lower than - 3 ℃;
The two-year-old plants can bear low temperature of - 20 ℃. The development temperature of growing flower bud is suitable for 15-20 ℃, and the night temperature is not lower than 10 ℃, otherwise the flower bud will gradually wither and wither.
It belongs to sun loving and light loving plants, so it is not suitable to grow in the shade for a long time. However, it should not be too hot in summer. It needs to be covered with 50% - 70% sunscreen, but excessive covering will also affect the delay of its flowering.
French perfumes should be kept dry and wet. They must not accumulate too much water or cause root damage such as rotten roots.
The compound fertilizer of N, P, K can be applied during the seedling period, keeping the EC Value of medium in the range of 0.8-1.0.
The EC Value of maintaining medium should be between 1.5-1.8 when applying NPK compound fertilizer during the middle and large seedlings.
The EC Value of N, P, K was between 1.2-1.5.
The growth of French perfume flowers is accompanied by various diseases and insect pests. In addition to the use of chemicals for control, the application of water is also the key.
In summer, anthrax is the main disease, while in spring and autumn it is easy to cause powdery mildew. In winter, it is also plagued by grey mould. It can be said that it is damaged in all seasons. Therefore, it is necessary to spray calcium, boron, etc. on physiological falling flowers. Insect damage is relatively less, but we should also be wary of the damage of moth and butterfly larvae.
