(This plant comes in a 3.5 inch 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).
Austrocephalocereus estevesii, native to Brazil, forms blue-green stems with many ribs. Stems are densely spined with golden or reddish-gold spines arising from cream-colored areoles. A very beautiful collector's item. Flowers in the summer. Protect from frost. Provide bright light/sun. hardy to 40F. Grows to 6' tall. Water thoroughly when soil is dry.
Water requirements: Drought-tolerant
Sun exposure: Full sun
Bloom color: White/near white
Bloom time: Late Spring/early Summer
Some of the information in this description has been found at desert-tropicals.com, llifle.com and cactus-art.biz