Notocactus buiningii

Notocactus buiningii is one of the most distinctive Notocacti with a unique bright emerald green body, with many sharp ribs and large yellow flowers that open during the day and close at night .This cactus is a pretty easy plant to cultivate. It is good to keep moderately cool, and can also tolerate a light frost.

Recommended temperature zone: USDA: 9b-11

Frost tolerance: Only light frost

Sun exposure: Light shade

Origin: Southern Brazil, northern Uruguay

Growth habits: Solitary, flattened cactus, 3" tall (8 cm), 5" in diameter (12.5 cm)

Watering needs: Regular water in summer. Keep rather dry in winter, rot easily if the substrate is wet and cold, tends to lose its roots in winter.

Some of the information in this description has been found at desert-tropicals.com, llifle.com and cactus-art.biz