They are drought-tolerant so they do not need watering very regularly. Water only when soil is dry to the touch. Avoid letting water sit for too long in the rosette to prevent rot and fungal diseases. Reduce watering in the cold season.
Cacti require well-drained and porous soil to grow healthy. Water should be drained fast to avoid over-absorption to roots. It is better to choose a commercial cactus mix, otherwise, you can make a well-draining soil mixture on your own by combining the equal parts of perlite or pumice and potting soil.
The best temperature for cacti is between 40F-80F. Bring them indoors when it is below 40F.
Cacti can be fertilized once during the growing season (spring/summer) with diluted houseplant fertilizer.
USDA Zone 10-12
USDA Zone 9b: to -3.8 C (25 F)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)
USDA Zone 11: above 4.5 C (40 F)
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