(1) soil: the most important requirements are drainability and permeability. Sandy loam or calcareous sand can be selected. Do not choose too fertile soil, easy to hurt the root.
(2) watering: summer needs the most water, preferably in the morning and evening. Don't water at noon, it's easy to burn leaves. If it is a rainy day, then the water volume should not be too large. With the decrease of temperature, the demand for water will decrease. The general principle is to dry through and pour through.
(3) fertilization: it can be made up of bean cake water, egg water, etc. However, it is necessary to add enough water, and the concentration should not be too high. It is mainly used in spring and autumn. It is used every 20 days and grows fast once every half a month. Time should also be noted, preferably in the early morning or evening
(4) temperature: warm, preferably 20 to 30 degrees. Not cold resistant, winter temperature should not be less than five degrees. In addition, the temperature difference between day and night should not be too large.
(5) light: cacti belong to strong positive plants, which need very strong light to grow well, and flowers also bloom well. However, some small spherical varieties can be placed in the half shade, their characteristics are somewhat different.
Most susceptible to putrefaction. First, cut off the infected part, and change the basin if it is serious. Next, strictly control water and improve ventilation.
