1、 Excessive watering

1. Reason: the leaves of swallow's paw turn yellow, which may be because the watering frequency is too high when maintaining it, which makes its roots waterlogged. Waterlogging of roots will reduce the absorption efficiency of nutrients and water. If the leaves lack nutrients and water, they will turn yellow

2. Rescue method: at this time, you need to take the plant out of the original flower pot and gently shake off the soil on its root system. Then, use scissors to cut off the black and rotten roots, and then plant them in new soil that is not easy to accumulate water for maintenance

2、 Soil hardening

1. Reason: if the pot is not changed for a long time during the maintenance of swallow's paw, its soil may harden. Its roots will not absorb water and nutrients, and its leaves will turn yellow because of the insufficient supply of water and nutrients

2. Rescue method: at this time, it needs to be replaced with soil. New soil should be selected with sufficient nutrients and good air permeability. It is recommended to use nutrient soil or culture soil made of rotten leaf soil, vegetable garden soil and river sand

3、 Too much light

1. Reason: it doesn't like strong light. If you expose it to strong light when curing it, its leaves will be sunburned and turn yellow

2. Rescue method: at this time, cut off the completely yellow leaves on the plant. Then put it in a semi shady and ventilated place for maintenance, and wait for it to grow new leaves slowly