Cultivation methods and precautions of black heart chrysanthemum

How to grow black chrysanthemum

soil

Rudbeckia has low soil requirements and is highly adaptable. It is suitable for planting in well-drained, loose, breathable, and fertile sandy loam.

Temperature and light

The suitable temperature for the growth of Rudbeckia is between 10℃ and 30℃. Only by maintaining the appropriate temperature can Rudbeckia continue to grow and bloom. In terms of light, black chrysanthemum likes an environment with plenty of sunlight. It needs sufficient light during its growth period to grow vigorously and bloom beautifully. In the summer, there is strong sunlight and the temperature is too high, so the blackheart chrysanthemum should be properly shaded and cooling measures should be taken, such as spraying water; in the winter, the temperature is low and there is little sunlight. In order for the blackheart chrysanthemum to continue to grow, it should be placed in a sunny place indoors for maintenance and attention should be paid to keeping warm.

Water and fertilizer

Rudbeckia does not require much fertilizer and water. Watering generally follows the principle of watering when the soil is dry and watering when it is wet. During the growing period, Rudbeckia requires a large amount of water, so it needs to be watered more appropriately. During the bud period of Rudbeckia, the soil in the pot needs to be kept moist, and it needs to be watered enough. It can be watered in the morning or evening. When Rudbeckia is blooming, it needs to be watered sparingly to prevent the plant from falling over. In terms of fertilization, in addition to adding appropriate base fertilizer during planting, generally when the growth conditions are good, only appropriate topdressing is required to supplement the missing nitrogen, phosphorus and potassium elements to ensure sufficient nutrients; during the flowering period of blackheart chrysanthemum, the application rate of phosphorus fertilizer and potassium fertilizer should be increased to make the flowers bloom beautifully.

Reproduction

The main method of reproduction of Rudbeckia is division, but it can also be propagated by sowing in spring and autumn. In addition, tissue culture and cutting propagation are also used.

Precautions for the cultivation of black heart chrysanthemum

prune

During the growth process of blackheart chrysanthemum, it needs to be pruned frequently. During the growth period of the Rudbeckia plant, pinch the top in time to promote branching and make it bloom more. When the leaves are too dense, trim the old and diseased leaves on the Rudbeckia plant in time to make the plant shape beautiful, and improve the lighting and ventilation conditions to reduce the occurrence of diseases and pests.

Pests and diseases

When cultivating rudbeckia, you should pay attention to the possibility of root rot or leaf spot disease, and prevent and control diseases and pests in time.