Sulcorebutia rauschii

Sulcorebutia rauschii, also known as Rebutia rauschii, is a small, clustering cactus native to Bolivia. It forms dense clumps of dark green to purplish stems, each covered in flat, spirally arranged tubercles. The cactus is adorned with short, black spines that lie flat against the surface, giving it a distinctive, textured appearance.

During late spring, Sulcorebutia rauschii produces vibrant magenta flowers with a paler throat, which bloom near the base of the stems. These funnel-shaped flowers can reach up to 2 inches (5 cm) in length, adding a striking contrast to its dark body. The plant thrives in well-draining soil, prefers bright but indirect sunlight, and requires minimal watering to prevent root rot.

Sulcorebutia rauschii is a fascinating cactus that thrives with proper care. Here are some essential tips to keep it healthy:

Light Requirements

• Prefers bright, indirect sunlight or partial shade when young.
• Can tolerate full sun as it matures, but slight shading during the hottest summer days helps prevent sunburn.

Watering

• Use the soak-and-dry method—water deeply, then allow the soil to dry completely before watering again.
• Water weekly during the growing season, but reduce watering in cooler months.
• Keep the soil strictly dry in winter, as excess moisture can lead to root rot.