Sulcorebutia rauschii, part of the Cactaceae family, is commonly known as ‘Rauschi’. Noted for its herringbone shape, this summer-dormant plant is made up of stems covered in flat tubercles and grows up to the height of 4 cm. Tubercles are violet in color and form spiral rows that connect at the apex. Rauschi is native to Bolivia.
Sulcorebutia rauschii has a slow growth rate.
You can expect to see magenta flowers in cooler months.
Soil: S. rauschii loves a very permeable, coarse mineral soil. It must strictly be kept dry throughout the dormancy period since it is very sensitive to any moisture excesses, To prevent rottenness it is also advisable to surround its root neck by very rough sand or grit. This helps a fast water drainage and an appropriate air circulation.
Light: Full sun (part shade in the hottest months is ok)
Water: Water well when soil is completely dry; withhold water in winter.
Pets: Toxicity unknown, use caution.
Much of the above information was obtained from this site: https://www.llifle.com/Encyclopedia/CACTI/Family/Cactaceae/11708/Sulcorebutia_rauschii_f._violacidermis