Cactus Gymnocalycium friedrichii CrestedInstead of the typical globular shape, the crested form has a fan like or undulating brain like growth pattern. Color can vary depending on light, ranging from gray green, olive green, greenish purple, reddish brown to a dark grape! Likes soil to be completely dry before watering, be sure to water at the soil level and not overhead water as it may cause rot if it collects in the ridges. Note to customer: Not all plants are in bloom at this time.