Rebutia rauschii (G.Frank) D.R.Hunt
Sulcorebutia rauschii, Sulcorebutia tarabucoensis subsp. rauschii, Weingartia rauschii
Rebutia rauschii is a form of the variable Rebutia canigueralii. It is a small, usually clustering, rarely solitary cactus that forms clumps of many purple stems with characteristic very short, black spines arranged in the form of a fishbone. The stems are up to 1.6 inches (4 cm) tall and up to 2 inches (5 cm) in diameter. They are covered by flat tubercles, which vary in color from dark green to violet. In older plants, tubercles are arranged in up to 16 spiral lines merging in the apex. Areoles are long, narrow, with short white felt. Spines are short, black, and completely flattened against the tubercles. Flowers are funnel-shaped, up to 2 inches (5 cm) long with equal diameter. They are yellow-green with tan-colored scales and deep magenta tepals. Fruits are reddish-brown and up to 0.2 inches (5 mm) wide.
USDA hardiness zone 9b to 11b: from 25 °F (−3.9 °C) to 50 °F (+10 °C).
How to Grow and Care
If you can grow cacti and succulents successfully, you can likely grow the popular Rebutia without too much trouble. Their water and light requirements are fairly typical for many cacti species, including a cooling period in the winter to promote better blooming. Watering should be done carefully, allowing the plant to almost dry out between waterings. The cactus mustn't be exposed to prolonged dampness and sitting water. Never let your cactus sit in a dish of water. For the best viewing, instead of propagating your offsets, let the plant for a large cluster. When it blooms, this will make a truly beautiful display. Lastly, make sure to fertilizer during the growing season for the best results.
Repot as needed, preferably during the warm season. To repot a cactus, make sure the soil is dry before repotting, then gently remove the pot.
See more at How to Grow and Care for Rebutia.
Native to Bolivia.
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