1. Soil: Keels are native to relatively barren areas, and the requirements for soil are not high. If you keep it at home at ordinary times, as long as the soil is well drained. Of course, it is best to find sandy soil rich in humus to help it grow.

2, lighting: you can raise it in the sun, put it in the sun or on the window sill, you can often change the angle of light to make it grow evenly.

3. Moisture: You don't need too much moisture either. Normal farming, just pay attention to watering. Water can be watered every three days in spring and autumn, and more in summer, but when the temperature exceeds 30℃, it will hibernate. At this time, it is best not to water.

Extended data:

The specific practice of plastic surgery is:

When the plant grows to 20 cm to 30 cm, cut off the top with a sharp knife and immediately seal it with plant ash. After the plants grow branches, only the top three branches remain, one at each corner, and the rest are erased.

When the second layer grows to 25 cm to 30 cm, the top is cut off again. After the branches are born, choose three branches, three at each corner, that is, 1, 3, 9-shaped keel.

When the tufted columnar plants grow to 40 cm to 50 cm or 30 cm to 40 cm, cut off the top and let them grow naturally to form a multi-headed keel, but the selection should be orderly and not disorderly.