After the basin comes out, remove a small part of the old soil at the bottom or top of the keel, and be careful not to hurt the roots too much. Of course, the old soil can be removed.

. Put the keel into a new basin and tamp it with a wooden stick when filling the soil. Don't leave gaps in the soil. Leave room for watering, don't fill it too full.

After getting wet, it will rest in a cool and ventilated place and will be maintained normally after two weeks. Because organic fertilizer is added to the soil, no fertilization is needed for nearly 1-2 months.

It is better to drink water than to do it.

Longgu flower, also known as ruler, belongs to the genus ruler of Cactus and is an epiphytic succulent plant. The stems are thick, dark green and triangular. The flowers are large, white or red, fragrant and open from May to September.

Native to tropical and subtropical America, it is also cultivated in other tropical and subtropical regions. China, Guangdong, Guangxi, Fujian and Hainan are naturally distributed. The flower of measuring ruler is big and fragrant. Suitable for garden planting, potted plants, or as hedge plants.