Reasons for Blackening Leaves of Fernleaf Bamboo and Solutions

1. Unsuitable Light

(1) Specific reasons

Neither too strong nor too weak light is acceptable. If it is too strong, the water in the leaves will evaporate very quickly, and the leaves may turn black. Conversely, if it is kept in a shaded environment for a long time and the light is too weak, chlorophyll cannot form, and the leaves may also turn black.

(2) Solutions

Generally speaking, in spring, summer and autumn, place it in a semi-shaded spot with a little scattered light, and that is enough. However, in winter, the light can be appropriately increased.

2. Unsuitable Fertilizer

(1) Specific reasons

There are two situations. The first is too much fertilizer, which may cause leaf burn. The second is a lack of phosphorus fertilizer. Both situations can cause the leaves to turn black.

(2) Solutions

If it is the first situation, then the fertilizer needs to be diluted with water before application. If it is the second situation, then some phosphorus fertilizer can be used appropriately.

3. Too Little Water

(1) Specific reasons

If there is a long-term water shortage, the edges of the leaves will first become dry and withered, and then they may turn black. Next, if it becomes severe, they may fall off.

(2) Solutions

In this case, water it in time. However, it does not need too much; water it thoroughly in one go, and do not let water accumulate. After that, just keep it moist.

4. Temperature Too Low

(1) Specific reasons

This situation mainly occurs in winter. If it suffers cold damage, it will also cause the leaves to turn black.

(2) Solutions

For this situation, adjust the room temperature in time, or take other insulation measures.