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Artichoke cactus
Scientific Name: Obregonia denegrii Fric
Synonym: Ariocarpus denegrii, Strombocactus denegrii
Family: Cactaceae
Listed in CITES Appendix 1
Artichoke cactus (Obregonia  denegrii)
Obregonia denegrii at the Huntington Gardens in early July
Recommended Temperature Zone:
USDA: 9-11

Frost Tolerance: 20F (-7C) for short periods

Sun Exposure: Light shade

Origin: Mexico (Tamaulipas: Ciudad Victoria)

Growth Habits: Solitary, globose stem, 3.2 to 5 inches in diameter (12 cm), greyish green to dark green, triangular tubercles, 0.8 to 1 inch wide at the base, 0.4 to 0.6 inch long, areoles at the tips of the tubercles with 2 to 4 soft spines, 0.4 to 0.6 inch long; thick root

Watering Needs:

Propagation: Seeds, sometimes grafted to speed up growth.

Obregonia has only one species from Tamaulipas, Mexico. It is related to Ariocarpus. The genus is named Obregonia to honor Alvaro Obregon (1880 - 1928) president of Mexico.

Artichoke cactus (Obregonia  denegrii)

Artichoke cactus (Obregonia  denegrii)

Blooming Habits:
The Obregonia denegrii has white diurnal flowers, 1 inch in diameter (2.5 cm), 1 to 1.2 inches long (2.5-3 cm) in summer. The seeds are large and black.

Fruiting Habits:

Obregonias are propagated by seeds. Seedlings are sometimes grafted on Echinopsis to increase their growth speed.

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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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