Potted Campanula, with fertile sandy soil as the best, requires loose soil, and good drainage, can increase some rotten leaf soil, make it rich in humus.
Huangzhonghua likes a sunny growing environment. It needs enough light during the growing period. If the light is not enough, it will make the plants grow in vain and reduce the flowering. The suitable temperature for the growth of huangzhonghua is 15 ℃ - 25 ℃, which is afraid of high temperature in summer. When the temperature is too high, it will enter into dormancy. When the winter temperature is low, it needs to be kept warm, and the winter temperature should not be lower than 5 ℃.
Huangzhonghua likes the humid growing environment and needs sufficient water supply. It will not grow well under the dry conditions, but it is more afraid of waterlogging. Watering can be done once a day in spring and autumn, less in winter, and controlled during semi dormancy in summer. Fertilization should follow a certain rule, apply sufficient basal fertilizer before planting, and apply fertilizer once every one to two months in the growing period. When applying fertilizer, it should be noted that the application of nitrogen fertilizer should be controlled in the growth period to prevent the plants from growing in vain. In the flowering period, phosphorus and potassium fertilizer should be applied to promote the flowering.
During the growing period, Campanula needs to be pruned to make it grow better. Prune and prune the branches in early spring every year, and cut off the upper branches of Campanula after flower withering, and combine fertilization to promote the germination of new branches of Campanula and flowering again.
The propagation of Campanula can be carried out by sowing and cutting, which is more suitable for spring and autumn. However, the main way of reproduction is sowing.
