Scientific Name
Rebutia steinbachii subsp. tiraquensis (Cárdenas) D.R. Hunt
Synonyms
Rebutia tiraquensis, Rebutia totorensis, Sulcorebutia heinzii, Sulcorebutia tiraquensis, Sulcorebutia tiraquensis subsp. tiraquensis, Sulcorebutia tiraquensis subsp. totorensis, Sulcorebutia tiraquensis var. tiraquensis, Sulcorebutia tiraquensis var. totorensis, Sulcorebutia totorensis, Weingartia aglaia, Weingartia tiraquensis, Weingartia tiraquensis var. totorensis
Scientific Classification
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Trichocereeae
Genus: Rebutia
Description
Rebutia steinbachii subsp. tiraquensis is a usually clustering, rarely solitary cactus, readily forming clumps of many heads. The stems are grayish-green to dark green, sometimes very dark magenta-green, and almost completely concealed by variously colored spines. Flowers are bright pink to light purple, numerous in a ring at the base of the plant. They are up to 1.4 inches (3.5 cm) long and up to 1.8 inches (4.5 cm) in diameter. It blooms in spring and the flowers remain open for up to five days.

Hardiness
USDA hardiness zones 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 Rebutias 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 stunning display. Lastly, make sure to fertilizer during the growing season for the best results.
Repot as needed, preferably during the warm season. To repot your Rebutia, make sure the soil is dry before repotting, then gently remove the pot. Knock away the old soil from the roots, making sure to remove any rotted or dead roots in the process. Treat any cuts with a fungicide. Place the plant in its new pot and backfill with potting soil, spreading the roots out as you repot. Leave the plant dry for a week or so, then begin to water lightly to reduce the risk of root rot.
Learn more at How to Grow and Care for Rebutia.
Origin
Native to Bolivia.
Links
- Back to genus Rebutia
- Succupedia: Browse succulents by Scientific Name, Common Name, Genus, Family, USDA Hardiness Zone, Origin, or cacti by Genus