How To Care For Desert Cactus. To care properly for your indoor cactus make sure it gets plenty of bright light Most cacti need plenty of bright lightin fact 12 hours of sunshine daily is ideal. If your climate is cooler or more humid you will need to adjust your schedule accordingly.
During these waterings make sure the plant is thoroughly watered. High light refers only to bright indirect light since direct sun often burns the leaves of indoor houseplants. A good rule of thumb is to repot your cactus and succulent plants once every four years giving them fresh soil and moving them into a larger pot if they need it.
An ideal location for any kind of desert cactus is a south-facing windowsill.
They need water in spring in summer. These cacti are not cold hardy and need to come back indoors before cold temperatures threaten. It is needed when the plant grows. Aztekium like most cacti need bright light with some sunshine to grow healthy however these cacti prefer to be protected from very strong midday sunshine and prefer more shade than a lot of the other types of Desert Cacti and Aztekium would be best positioned where they can get either early morning or very late.