(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).
Recommended temperature Zone: USDA: 9b-11
Frost tolerance: Hardy to 23°F (-5°C) for short periods
Flowers: Huge beautiful yellow flowers that will expand up to 10 cm across
Sun exposure: Light shade
Origin: Brazil (Rio Grande do Sul)
Watering needs: Regular water in summer. Keep rather dry in winter, rot easily if the substrate is wet and cold, tends to lose its roots in winter.
Some of the information in this description has been found at desert-tropicals.com, llifle.com and cactus-art.biz