What is the temperature needed for cutting to take root?

Temperature plays a decisive role in rooting speed. The suitable temperature for most flowers to take root is 20 ~ 25℃, and tropical flowers such as deciduous trees, leafy flowers and red mulberry need 25 ~ 30℃. Low temperature and slow rooting; If the temperature is too high, the incision will rot easily. Therefore, under natural conditions, cutting in spring and autumn is appropriate. Cutting should not be carried out in high temperature season without cooling equipment. Generally, the soil temperature is 3 ~ 5℃ higher than the air temperature, which is conducive to rooting before germination.