Sulcorebutia Rauschii Violacidermis
The Sulcorebutia Rauschii Violacidermis is a particularly aesthetic form of Sulcorebutia Rauschii, recognizable by its intensely violet epidermis. It is a miniature cactus native to Bolivia, highly prized for its graphic qualities, rare colors, and its ability to flower abundantly despite its small size.
It forms small spherical or slightly flattened heads, grouped into dense cushions. Each head measures between 2 and 4 cm in diameter and displays a spiral pattern of fine, well-defined ribs. The areoles bear short spines, white to pale yellow, which strongly contrast with the violet to purplish epidermis.
This characteristic color intensifies with light or under water stress, making it a remarkable collector’s plant. Like its relatives, this miniature cactus is perfectly suited to small containers and ideal for lovers of graphic and colorful cacti.
🌞 Bright light: Place it in full sun to enhance the violet pigmentation.
🌤️ Summer protection: Light shading during very hot afternoons helps prevent burns.
⚠️ Tip: Indoors, a south-facing exposure or supplemental grow lighting is recommended.
🌱 Spring / summer: Water every 2 to 3 weeks, only when the substrate is completely dry.
🍂 Autumn / winter: Stop watering and keep it cool during its dormancy period.
💡 Tip: Excess water causes rot. Water sparingly but deeply, then allow to dry completely.
🌡️ Optimal range: 15 to 25 °C.
❄️ Cold tolerance: Can withstand down to -2 °C briefly if the substrate is completely dry.
🏠 Wintering: A well-ventilated location at 5–10 °C encourages abundant flowering in spring.
🌵 Ideal mix: 50% cactus potting mix + 50% mineral components (pumice, perlite, fine gravel).
🌸 Season: From late spring to early summer.
🎨 Color: Bright yellow or orange depending on the specimen, with a darker center.
💡 Encouraging flowering: Provide a cool winter rest and good light exposure.
