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Moon Cactus, Ruby Ball
Scientific Name: Gymnocalycium mihanovichii cv. 'Hibotan' Britton & Rose
Synonym: Echinocactus mihanovichii
Family: Cactaceae
Moon Cactus, Ruby Ball (Gymnocalycium  mihanovichii cv. 'Hibotan') Recommended Temperature Zone:
USDA: 9b-11

Frost Tolerance: Depends on which cactus it is grafted.

Minimum Avg. Temperature: 50F (10C)

Sun Exposure: Light shade

Origin: Paraguay

Growth Habits:

Watering Needs: Summer grower, water regularly in summer, keep rather dry in winter


The top of this cactus is not a fruit or a flower, it is actually the Gymnocalycium. This variety developed in Japan does not have any chlorophyll, and depend for its nourishment on the other cactus on which it is grafted. This other cactus is generally a Hylocereus (as in the picture). Hylocereus are fairly cold sensitive, and somewhat short lived. If possible, it is a good idea to re-graft it on something tougher, like a Trichocereus.

Blooming Habits:

Fruiting Habits:

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Desert-Tropicals is dedicated to provide gardening advice, gardening ideas, and information about flower of all kind for landscape and collections. We try to check carefully the identification of the plants on the illustrations as well as the other information from the page, but occasionally errors do occur. if you notice anything that needs to be changed please contact us. Thanks.

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