This incredibly floriferous peanut cactus is a hybrid (Chamaecereus x Lobivia), with both genera now under the Echinopsis umbrella. The flowers are to 3 inches in diameter, rose-colored, and tinged with purple highlights. Not only is 'Rose Quartz' very appealing, but it's also very resistant to insects such as mealybugs and to pathogens such as soft rot. It becomes dormant in stifling summer heat, as the original Chamaecereus is native to mountainous regions of South America. The Chamaelobiva hybrids are very easy to grow, and are the ideal plants for beginners.