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Gymnocalycium ragonesei
Scientific Name: Gymnocalycium ragonesei Castellanos
Synonym: Gymnocalycium obductum
Family: Cactaceae
Gymnocalycium  ragonesei
Gymnocalycium ragonesei at Miles' to Go
Recommended Temperature Zone:
USDA: 9b-11

Minimum Avg. Temperature: 50F (10C)

Heat Tolerance: Light shade in Phoenix

Sun Exposure: Light shade to full sun

Origin: Argentina (Catamarca, Cordoba) at low elevation

Growth Habits: Solitary flattened cactus, 3 inches in diameter (7.5 cm)

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

Propagation: Seeds

The species name is spelled ragonesii or ragonesei, but the Kew Index lists it as ragonesei, and its the spelling we retained here. It is named after its collector whose name was Ragonese. This Gymnocalycium is supposed to be one of the more difficult species in cultivation.

Blooming Habits:
The Gymnocalycium ragonesei has a 1.5 inches long (4 cm) white flower with a reddish throat.

Fruiting Habits:

Cacti: The Illustrated Dictionary

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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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