Brazilian iron tree is often propagated by cutting. The cutting time can be from April to June, and the temperature can be kept above 22 ℃. Such a stable high temperature climate can promote Brazilian iron tree to take root as soon as possible. Other seasons can also be cuttings, but the temperature is too high and too low is not appropriate. If cuttings are selected in summer, it is easy to cause branches to rot. if cuttings are selected in winter, it will be difficult to root at low temperature.
Select the plants with better growth, cut the mature and robust stems from the top, keep the length moderate, and cut them into about 5-10 cm. In addition to the length requirements, it is also necessary to ensure that there are no pests and diseases, full of vitality and vitality, so as to improve the survival rate.
After the treatment of the branches, it is necessary to prepare the soil, to ensure ventilation and drainage. The branches can be prepared with coarse sand or vermiculite, and inserted into the soil. The temperature is maintained at about 25-30 ℃, the air humidity is maintained at 80%, and the roots can take place after about 30-40 days.
In addition to soil cutting, water cutting can also be used for rooting. The cross section of the branch shall be kept smooth and smooth, and the upper end shall be coated with wax to prevent water evaporation. Then it is inserted into the water, the temperature is kept at about 25 ℃, and it can take root after a period of time.