Hemerocallis fulva has strong growth, strong adaptability and poor selectivity to soil. It can grow in dry, humid and barren soil, but it has poor growth and development, small and little flowering. It is better to have a moist soil rich in humus and well drained.
During the whole growth and development period, if the weather is not very dry, it is generally unnecessary to water. However, after watering in spring, if the soil water is insufficient, it will affect the quantity of flowering. Therefore, watering should be timely in spring in dry areas, and sufficient water should be provided in the growing season to keep the soil loose and moist, otherwise it will affect the normal flowering of plants and the quality of flowers.
From the second year of planting, timely fertilization has a greater impact on the flowering of that year. It is best to apply liquid fertilizer three times in the whole year. The first time is to apply fertilizer when the new bud rises to about 10 cm, the second time is to apply fertilizer when the scissor scape rises, and the third time is to apply fertilizer ten days after flowering.
Common diseases include leaf spot, leaf blight, rust, anthrax and stem blight. The main pests are spider mite, aphid, thrips, leaf miners and so on. In time, the disease can be prevented by spraying with 800 of the 75% chlorothalonil spray, and insect pests can be controlled by spraying 3000 times with emamet.
