1、 Outdoor wintering method

1. Shed: if you want to let passion fruit spend the winter outdoors, you can use plastic film to build a shed. This is a method with good cold protection effect, although it is a little troublesome. In sunny days, it needs to be opened for ventilation and light, and it should be covered in the evening

2. Wrapping: when it is cold in winter, you can wrap the root and trunk of passion fruit with plastic cloth. And we should water it less and see more sunshine

3. Sprinkle lime: generally, when potted culture, the way to keep out the cold is to sprinkle some lime into the basin. Weeds and films can also be used to keep out the cold. If you spend the winter in the third year, you can cut off some old branches, but it doesn't matter if you don't cut them

2、 Overwintering temperature

The suitable temperature for its growth is about 20 ℃ ~ 30 ℃. Under normal circumstances, it can pass the winter smoothly as long as the overwintering temperature is above 0 ℃. However, if the temperature is lower than - 2 ℃, it is difficult to resist the invasion of cold air and is likely to be frozen. It may freeze to death if it is in a low temperature environment for a long time. Usually, potted culture is easy to spend the winter, because it can be put into the house when the temperature drops