Do azaleas shed their leaves in winter? Why do their leaves turn white?

1. Fallen leaves?

Rhododendrons will shed their leaves in winter, which is a normal phenomenon. However, generally only the old leaves will fall, and there will not be large-scale leaf fall. If you find that a large area of ​​leaves on the plant have fallen off, it is likely caused by improper maintenance. However, there are many varieties of rhododendron, and some varieties do not shed their leaves.

2. Winter maintenance

When growing rhododendrons in winter, you should pay attention to cold protection, especially when growing them in northern regions, do not overwinter them outdoors. After the beginning of winter, it should be kept indoors and the temperature should be controlled at 8-10℃. It should also be exposed to the sun more. The sunlight is not strong in winter, so it can be exposed to sunlight all day. At this time, it requires less water, so water it sparingly and do not water it unless the soil is dry. Don't fertilize it. Just apply base fertilizer once in January of the following year. This will promote its spring flowering.

3. Why are the leaves turning white?

When the leaves of azalea turn white, it is likely infected with a disease. When the plant is infected with powdery mildew, the leaves will turn white. You should immediately buy medicine for prevention and control, or use green onion juice or rice vinegar liquid for spraying, which can also have a therapeutic effect. This phenomenon can also occur if the maintenance environment is not breathable or the temperature is too high, so the maintenance method needs to be changed accordingly. In addition, if it is caused by red spider mites, use pesticides to kill them.