1、 Illumination

Black heart chrysanthemum likes light, but for the potted plants just bought, it's best to put them in the astigmatism and ventilation place for 2 days, and then add light to the whole day after 2 days. If it is a semi sunshine conservation environment, the black heart chrysanthemum can also grow as usual, but the poor illumination will affect the flowering of the plant

2、 Temperature

The most suitable temperature for the growth of black heart chrysanthemum is 15-28 ℃. In winter, potted plants should be moved indoors for overwintering, and in winter, ground plants should be cultivated with soil and covered with hay to prevent cold and overwintering

3、 Watering

Potted black heart chrysanthemum should keep the soil moist during its growth period, but it should not accumulate water. At ordinary times, you can observe that the soil surface turns white. When you carry the basin soil, you feel it becomes lighter and more permeable. Pour it until there is water flowing out of the basin bottom

4、 Pruning

The newly bought black heart chrysanthemums are often potted plants that have bloomed. We have to cut off the remaining flowers and 2 pairs of leaves after the flowers fail. By the way, cut the remaining branches and dead leaves to promote the germination of new branches and open another crop of flowers

5、 Fertilization

The black heart chrysanthemum at flowering stage is not fertilized. After the plant is pruned, phosphorus and potassium fertilizer shall be applied once a half month. If phosphorus fertilizer is applied to promote the growth of seedlings, potassium fertilizer is applied to promote the growth of seedlings before flowering, and potassium fertilizer is applied to promote the growth of seedlings

6、 Diseases and insect pests

Black heart chrysanthemum is a plant with fewer diseases and pests in the composite family. For daily maintenance, just don't be waterlogged and prevent root rot. Once root rot is found, the soil can be irrigated and disinfected with carbendazim solution