Ortegocactus macdougallii

Scientific Name: Ortegocactus macdougallii Edward Alexander
Synonym: Neobesseya macdougallii
Family: Cactaceae

Recommended Temperature Zone:
USDA: 9a-11

Frost Tolerance: 20°F (-7°C)

Origin: Mexico (Oaxaca) on limestone rocks

Growth Habits: Clumping, each stems up to 1.6 inches in diameter (4 cm)

Watering Needs: Rot prone, use shallow pots, with good drainage.

Propagation: Seeds, grafted plants clump readily and the offsets can be used for propagation.

Ortegocactus is a genus closely related to Mammillaria. This is the only species of the genus. It is often grafted since it is tricky to grow when on its own roots.
A harmless but unsightly orange discoloration is common at the base of the stems.

Blooming Habits:
Yellow flowers 2 inches in diameter (5 cm) in the spring