Reasons for Yellowing Leaves of Daylily and Solutions

Daylily is a common potted flower. Its leaves are flat and long-linear, relatively broad in shape, and quite ornamental. Once its leaves turn yellow, it indicates that its health is relatively poor. So what causes daylily leaves to turn yellow? How should it be solved? Let's learn about it together.

1. Lack of light

Daylily likes sunlight and is also fairly shade-tolerant, but if it is kept long-term in an environment lacking light, then respiration and photosynthesis will be blocked due to the lack of light, causing its leaves to lose green color and turn yellow, and in severe cases the plant will die.

Solution: The daylily needs to be promptly moved out of the dark environment lacking light and placed in a bright environment for care. After the leaves return to normal, it can be placed in sunlight for growing. Do not move it directly from a dark place into direct sunlight, as this may have the opposite effect. The daylily needs to slowly adapt to the new environment.

2. Soil compaction

During the process of growing daylily, if the soil used is not loose and drains poorly, then after a period of watering and fertilizing, its soil will compact into clods. This not only hinders the growth and development of the root system, but also causes the roots to suffocate from lack of oxygen. Yellow leaves are only one of the milder symptoms; in severe cases, it causes root death, and the aboveground plant will gradually wither.

Solution: During the process of growing daylily, no matter what kind of soil is used, attention should be paid to loosening the soil regularly. This can excellently avoid soil compaction and can also prevent pathogens from overwintering in the soil. If it is a potted daylily, then it is best to repot once every two years.

3. Too little fertilizing

During the process of growing daylily, generally 3-4 chi of fertilizer is needed each year to meet its nutrient needs. If using diluted fertilizer, it often needs to be applied once every 15-20 days. If the soil itself is not fertile and fertilizer is not applied in time, or too little fertilizer is applied, then yellowing of daylily leaves is unavoidable.

Solution: During the growth period of daylily, fertilizer should be applied reasonably. Generally, fertilizer can be applied once a month, following the principle of diluted fertilizer applied frequently. The concentration of each fertilizing can be slightly lower. This not only provides sufficient nutrients, but also strengthens the daylily's constitution and improves its resistance to pests and diseases.

4. Damage from pests and diseases

Daylily does not grow smoothly all the time. Pests and diseases such as aphids, red spider mites, leaf blight, and rust can all cause its leaves to turn yellow and also lead to slow plant growth. In severe cases, the entire plant dies. This is one of the greatest threats during the growth of daylily.

Solution: When pests and diseases are found on daylily, prevention and control must be carried out immediately, generally by spraying medicine, and at the same time the branches and leaves damaged by pests and diseases should be removed to avoid mutual infection among plants.

The above is an introduction to the reasons for yellow leaves of daylily and solutions. I hope it can help you. If you want to learn more related knowledge, please follow us.