What to do if Araucaria leaves fall off or turn yellow

1. Proper shade

Although Araucaria loves light, if it is exposed to strong sunlight, its leaves will be sunburned, affecting photosynthesis and causing them to fall off. Usually in the summer you need to provide shade, or put it in a bright place indoors so that it receives scattered light. However, if it is winter, it is necessary to ensure sufficient light, which will help raise the temperature and allow it to safely overwinter.

2. Replenish water

Araucaria is suitable for growing in a humid environment and has poor drought tolerance, so it must be watered frequently to avoid the leaves falling due to dry environment. During the growing season of the plant, water it two to three times a week to ensure the soil is moist. If the temperature is high and water evaporates quickly, you need to spray water around to alleviate the water loss caused by transpiration.

3. Keep warm in winter

Araucaria is afraid of cold, so you need to take good measures to keep warm in winter. If the temperature is relatively low, the leaves will fall off after freezing. Usually before winter, the plants need to be moved to a warm place indoors to ensure that the temperature is not lower than 8℃. If the room temperature is low, you can use a larger plastic bag to completely cover the upper part of the plant, which also provides good insulation.

4. Reasonable fertilization

The growth of Araucaria requires certain nutrients, so it needs to be fertilized. When planting, add an appropriate amount of decomposed organic fertilizer as base fertilizer. After the spring, apply fertilizer regularly, usually 1-2 times a month. Fertilizer should be a thin liquid fertilizer, and calcium fertilizer should also be supplemented, so that the color of the leaves can be more oily.