1、 Cutting time

1. Spring. Cutting is best carried out in spring, because the temperature in spring is the most suitable, and all aspects of climatic conditions are very suitable for cutting. This time is the vigorous growth period of Spiraea, and the survival rate of cutting will be very high, which can generally reach more than 90%

2. Summer. Cutting work can also be carried out in summer. Although the climate conditions in summer are slightly worse than that in spring, the climate conditions are still favorable for Spiraea. At this time, cutting can still ensure that Spiraea has a certain survival rate

2、 Cutting method

1. Soil culture. First of all, the selection of branches is treated seasonally. The hard branches are selected in spring and the softer branches are selected in summer. Then use special branch pruning props to intercept branches. The branches should be cut obliquely, and the length is generally between 10 cm and 15 cm. After the branches are cut obliquely, soak them in BT rooting powder for one day and one night, and then cuttings can be carried out. The culture soil for cutting should be disinfected before use, so as to prevent the incision of Spiraea hemp from being infected and affecting its rooting and germination. After inserting, you must remember to water. The watering shall be subject to watering through the soil, but you can't let water accumulate in the basin to prevent rotten roots. You must also pay attention to ensuring sufficient sunshine. But also to avoid direct sunlight, it is generally necessary to use a sunshade to block the sun. At the same time, the temperature should be controlled at 15-24 ℃. In this way, Spiraea will soon grow roots, and it can be transplanted into larger flower pots for cultivation in about 20 days

2. Hydroponics. Another cutting method is water culture. The selection and interception of branches are the same as soil culture. Finally, the intercepted branches are cultured in clean water. However, the water must be changed frequently. It is best to change it once a day. When the branches take root and sprout, they can be transplanted to the flower pot for cultivation

The above is the relevant content of Xiaobian's summary. I hope you can have a comprehensive understanding of the topic we are talking about today