It is generally carried out after cutting for about 12-15cm in a month, and it can be carried out 2-3 times. If you like short and strong plants, you can pick heart earlier. If you like tall and straight plants, you can pick heart later.
Topping is a way to increase the number of plants, usually after heart removal. Cutting the top bud and then cutting again, the new bud will grow better and grow faster as a cutting ear. Its time is generally after the heart.
When planting, it should be noted that the ambient temperature should not be too high, and the temperature in summer should not be higher than 24 ℃, and proper sunshade can be carried out. Generally, the light can be kept at 4-8 hours..