Why do lily leaves turn yellow?

There are many varieties of lilies , their postures are elegant, and their flowers have high ornamental value. Yellowing leaves are a common problem when growing lilies. Let’s learn in detail why lily leaves turn yellow.

1. Improper fertilization

The yellowing of lily leaves may be related to fertilization. Insufficient fertilization will cause the plant to lack nutrients and the leaves to turn yellow; excessive fertilization may cause the leaves to become thick and turn yellow. Therefore, the amount of fertilizer should be moderate, and the frequency of fertilization should be increased during the vigorous growth period, such as the branch and leaf differentiation stage and before and after flowering; fertilization should be reduced or not applied for a period of time after the end of flowering. At the same time, compound fertilizers rich in iron should be selected.

2. Impact of pests

Pests such as spider mites and aphids can cause serious damage to lilies, causing the leaves to turn yellow and fall off. Once insect pests are discovered, timely measures should be taken, such as using insecticides such as Benomyl solution and Flower Protector. If necessary, cut off the affected branches and leaves, spray disinfectant or replant.

3. Water imbalance

Lilies have a moderate water requirement, and over- or under-watering can cause the leaves to turn yellow. Beginners often make mistakes in water management because they do not understand the growth habits of lilies. Excessive watering can easily lead to root rot and yellowing of leaves; insufficient watering can cause the soil to clump, affecting nutrient absorption and leaf growth, causing the leaves to turn yellow.

4. Unsuitable soil

Lilies have high requirements for soil. Soil that is too sticky will cause the plant to develop poorly and the leaves to become dull in color. If they grow in unsuitable soil for a long time, the leaves will turn yellow and even affect flowering. Therefore, loose, breathable humus soil or sandy soil should be selected to facilitate root growth and overall beauty.

The above is an introduction to the main reasons why lily leaves turn yellow. In fact, if friends who grow lily potted plants do these points well during daily maintenance, the probability of yellow leaves will be reduced.