1、 Curing method

1. Temperature: its normal temperature is in the range of 15 to 25 degrees, which is neither cold nor heat resistant. It is suitable for planting in the south, because the plant body is relatively large, and it is difficult to take anti freezing measures for breeding in the north

2. Watering: it likes a slightly wet environment, so it should keep water in the soil for a long time, but there should be no ponding. Generally, if the temperature exceeds 20 degrees, it needs to be watered every other day. If the temperature is relatively low, it can be watered once or twice a week

3. Fertilization: it likes fertilization. In addition to mixing base fertilizer in the soil during planting, it also needs to often apply manure, bone meal, compost and other fertilizer species with moderate fertilizer effect to the soil, which is conducive to promoting the growth of branches and leaves of the plant

4. Light: it is suitable for growing in a sunny environment, so the planting place should be in a sunny place, and the daily light time should not be less than eight hours

2、 Breeding skills

1. Propagation: catalpa can be propagated by root embedding method. The propagation time is selected in late March. Select the root strips with a thickness of one to two centimeters and a length of 15 to 20 centimeters from the plants with strong growth and a diameter of more than 15 centimeters at breast height, and cut them obliquely. The incision should be smooth and buried obliquely in the soil. After burying, press the soil tightly, and then give a water penetration

2. Pruning: it has strong budding ability and needs to be pruned often. In spring, select three or four trunks and cut off all the others. After a period of time, new buds will grow on the trunk, and all of them should be removed. This can concentrate nutrients and ensure the plant type

3、 Problem diagnosis

1. Insect pests: it is more likely to be infected with pests such as Paulownia beetles. When the insects are still in the larval stage, it needs to spray 3000 times of hypertonic phenoxycarb EC once or twice a week

2. Pathological changes: catalpa trees are easy to be infected with anthrax when the climate is wet, and the leaves will fall off when the disease occurs. Therefore, ventilation needs to be strengthened during the maintenance process. If the plants are infected with anthrax, they can be sprayed with multi bacteria

4、 Other issues

1. Toxicity: it is non-toxic, not only non-toxic, bark can also be used, and leaves have the effect of detoxification

2. Whether it is suitable for indoor breeding: if it is a potted plant after treatment, it can be cultured indoors. If it is not treated, indoor breeding is not recommended, because its growth speed is too fast and its plant body is too large, which does not meet the conditions of family planting