(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).
This gorgeous cactus is one of the bigger melocactus, and one of the longest spined species of them as well.
Recommended temperature zone: USDA: 11-12
Minimum avg. temperature: 60°F (15°C)
Sun exposure: Partial sun
Origin: Brazil (Bahia, Minas Gerais)
Growth habits: Globose to conical, up to 18"tall (45 cm), 14" in diameter (35 cm), 10 to 13 ribs
Watering needs: Regular water in summer, less in winter. Needs good drainage.
Some of the information in this description has been found at desert-tropicals.com, llifle.com and cactus-art.biz