Gymnocalycium mihanovichii 'Moon Cactus'

Picture via shopaltmanplants

Basic Info

Gymnocalycium mihanovichii ‘Moon Cactus’ is a hybrid cactus type from Gymnocalycium. As the plant matures you can expect it to reach up to around 30 cm (12″) tall. The main feature of the cacti is the green stem that grows a global like top that can become red, orange or even other colours depending on the plant.

Scientific Classification

Family: Cactaceae
Subfamily: Cactoideae
Tribe: Trichocereeae
Genus: Gymnocalycium

Care and Propagation Information


Gymnocalycium mihanovichii ‘Moon Cactus’ can be quite beautiful when it is well-taken care off. This succulent type needs less watering than the other succulents. The watering method is very important to keep your cactus healthy. It should not sit on the water, and an excess amount of water should be avoided. The best way of watering is soak and dry method this succulent. Yet, the succulent should be controlled to avoid overwatering. In the case of overwatering, it is very common to find rotten roots.

General Care for Gymnocalycium mihanovichii ‘Moon Cactus’

This succulent type cannot survive alone. Its roots need a host so it comes grafted to a cactus. This cactus is formed by grafting two different cacti together. Colorful top comes from its Gymnocalycium roots. Since it lacks chlorophyll, it needs another cactus to stay alive.

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Quick Facts:

  • Prefers partial sun, shadow
  • Can be grown indoors
  • Grows 30 cm (12″) tall
  • Can die easily if overwatered see: How to Water Succulent Plants
  • Does not handle cold well
  • Prefers Zone 10a -1.1 °C (30 F)
  • Best propagated by grafting and offsets
  • Generally not known to be harmful to people or animals
  • Grows best during Summer
gymnocalycium Mihanovichii
gymnocalycium Mihanovichii

Where to Plant

Gymnocalycium mihanovichii ‘Moon Cactus’ succulents need partial light to partial shade. It is a great option for a beginner due to easy care indoors. 

This type of succulent prefers a warm climate. It can survive at zone 10a which is around -1.1 °C (30 °F). If you live in a cold area, it is better to plant this cactus in an indoor environment. As long as it gets enough sunlight, the plant will grow happily.

How to Propagate Gymnocalycium mihanovichii ‘Moon Cactus’

Moon Cactus can be propagated by offsets and grafting. When you graft, the cactus will have a longer lifespan. This process can be done by grafting it onto a new root. This succulent type does not require repotting often. Of course, the first-time repotting is essential when it is bought from the store.

Like all the other succulent types, a well-drained soil mixture is essential. If you want to know about well-drained soil mixtures, check How to Prepare Well-drained Soil for Succulent Plants.


Moon Cactus propagates from offsets. This cactus produces small offsets from the top of the plant. To start this process, use a sharp knife and remove an offset from the main plant. When you remove the offset, clean the extra soil from it. Before replanting, wait for a few days to allow it to dry. Use well-draining soil for your new succulent plant. Don’t forget to water when the soil dries out.

Origin and Habitat

Moon Cactus is native to South America especially Argentina.