Notocactus horstii at the Huntington Gardens, in mid June
USDA: 9b-11
Frost Tolerance: Hardy to 25°F (-4°C)
Heat Tolerance: Light shade in summer in Phoenix
Sun Exposure: Light shade to full sun
Origin: Brazil (Rio Grande do Sul)
Growth Habits: Solitary or slowly clustering, up to 1 foot tall (30 cm), 6 inches in diameter (15 cm)
Propagation: Seeds
Notocactus purpureus at Kuentz nurseries
Blooming Habits:
Yellow orange for what used to be Notocactus horstii, purple for what used to be Notocactus purpureus and is now Parodia horstii fa. purpurea.
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