Wilcox's Nipple Cactus,
Scientific Name: Mammillaria wrightii ssp. wilcoxii (K. Schumann) D.R. Hunt
Synonym: Mammillaria meridiorosei, Mammillaria wilcoxii, Mammillaria wrightii var. wilcoxii
Family: Cactaceae
The picture was taken early May at the Phoenix Desert Botanical Garden.
Sunset®: 8-24, 29, 30
USDA: 8-10
Frost Tolerance: Hardy to 10°F (-12°C), depending on the origin
Sun Exposure: Light shade in summer in Phoenix, full sun elsewhere
Origin: New Mexico, Arizona, USA, North of Sonora state, Chihuahua state, Mexico
Growth Habits: Solitary or clumping, cylindrical cactus, 4 inches tall (10 cm), 2 inches wide (5 cm)
Watering Needs: Regular water in summer
This Mammillaria is protected in Arizona.
Blooming Habits:
The large pink (occasionally white) flowers are 1.5 inches in diameter (4 cm). They come in spring.
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