(This plant comes in a 3.5" pot. You will receive a very similar plant to the one in the picture. It may or may not be blooming at the time of your purchase. The plant is shipped in its pot to prevent any damage to the roots).
The name 'narvaecensis' comes from Narvaez, the location where this cactus was collected.
Frost tolerance: 9b-12
Minimum avg. temperature: 45°F (8°C)
Sun exposure: Light shade
Growth habits: Clumping, heads 1" wide (2.5 cm) 1.5" tall (4 cm)
Blooming habits: Pink flowers, 1.5" in diameter (3.5 cm)
Some of the information in this description has been found at desert-tropicals.com, llifle.com and cactus-art.biz