The half lotus likes the moist soil. When choosing the medium, it is mainly sandy soil.
Lobelia chinensis likes a warm and semi overcast growth environment. The suitable temperature for growth is between 25 ℃ - 30 ℃, which is a little intolerant of cold. In winter, the temperature for overwintering is required to be higher, and it is better to keep above 15 ℃. If it is lower than this value, it may cause the growth of Lobelia chinensis to stagnate. When the temperature in summer is higher than 30 ℃, it needs to be watered to avoid its death. Sufficient light is needed to extend the time of light so as to flower faster. When the sun is strong in summer, attention should be paid to shade in time.
Lobelia chinensis likes a humid growing environment. During its growth, it needs to keep the soil moist. In the dry season, it needs to be watered to ensure sufficient water. The time of watering should be in the morning or in the morning as much as possible. It is not necessary to apply fertilizer frequently. When planting, some basic fertilizer should be applied to provide nutrients and appropriate top dressing. In summer, urea or human and animal manure can be applied, and in winter, local fertilizer can be applied.
There are several ways of propagation of Lobelia: sowing propagation, cutting propagation and branch propagation. This method is mainly used in the production. Cutting is carried out in high temperature season.
The diseases and insect pests of Lobelia chinensis are not common, but there will be the threat of plant lodging and leaf blotches, which need to be controlled in time.
First of all, when the temperature difference between day and night is large and the light is strong, it is easy to bloom, so it needs to extend the light time properly; secondly, when excessive nitrogen fertilizer is applied, the excessive nutrition will reduce the flowering; finally, during the flowering period, do not apply fertilizer or spray agricultural drugs.
