1、 The sun is too strong

1. Reason: wenxinlan likes to grow in a semi cloudy environment and hates an environment with too much light. If you accidentally put it in a place with strong light during maintenance, its leaves may turn yellow due to sunburn

2. Rescue method: at this time, the plant needs to be placed in a well ventilated and shaded place for breeding, and the severely sunburned leaves on it should be cut off. You can keep it for a while, and then you can recover

2、 Excessive watering

1. Reason: it likes humidity, but it is afraid of water logging. If the frequency of watering is too high during breeding, resulting in ponding in its flower pot, it will soak its roots and rot, resulting in yellow leaves

2. Rescue method: at this time, the plant should be placed in a ventilated place, and the flowerpot should be padded with bricks to let the water flow out of the soil. Then put it back in its place and stop watering for a period of time until it recovers

3、 Too little fertilization

1. Reason: if the soil is poor and there is no topdressing when it is growing, it will appear yellow leaves due to lack of nutrition

2. Rescue method: at this time, it needs to apply some low concentration compound liquid fertilizer to provide nutrients. If possible, it's best to replace it with more fertile soil