Cactus like the whole environment of high temperature and heat. In winter, it should be placed indoors for maintenance, keeping the room temperature at about 5 ℃. In winter, it is better to cover with plastic film. Cactus is a drought resistant plant, so the basin soil needs to be kept dry in winter, wring 50. Maintenance shall be carried out normally after Qingming.
Most cacti will bloom when they reach the growth age of 3-4 years. Some cacti do not bloom, because they are kept indoors for a long time without sunshine, which hinders the normal development and Photosynthesis of plants. To make cacti bloom, the temperature should be kept above 20 ℃ and light can be seen all the year round.
If the top of the cactus appears white, we can move it to a sunny place for curing, but we can't put it completely in the sun, otherwise the ball will be burned and rot. It's best to move to the sun after 15 days to get it fully illuminated. Gradually restore the whitened part to its original appearance.
