Rebutia is a genus of cacti commonly known as Crown Cacti and includes some of the most popular, easy-to-grow cacti, making them perfect for beginners. These plants are native to high elevations in South America and grow in clusters on mountains.
They bloom frequently and readily send out offshoots, so even plants only two or three years old will form an attractive cluster of small stems. Their flowers typically emerge from the base of the plant or between individual stems within the same cluster, rather than from the crown. They are not particularly difficult to care for and prefer bright light and moderate moisture.
Growing Conditions
Light: Rebutias thrive in bright light and a range of conditions. Many species can be grown in partial shade to full sun. However, these mountain species do not appreciate high temperatures.
Water: Throughout the growing season, from spring to fall, let the potting soil almost completely dry out between waterings, then water thoroughly. In winter, cut back watering.
Soil: A rich, fast-draining cactus mix is ideal.
Fertilizer: During the growing season, fertilize with a cactus fertilizer. Suspend feeding during the dormant winter period.
Propagation
Rebutias can be propagated easily from offsets, which form clusters around the base of the mother plant. Once your plant has reached a decent size and sent out several offsets, carefully remove one offset and let the cut dry on a paper towel for a few days.
Depending on the size of the cut area, a callous will form over the cut surface. Once the callous has formed, place the new plant in a pot with a well-draining potting soil mix and keep it in a warm place until new roots emerge. Once established, repot it into a regular container.
Repotting
Repot as needed, preferably during the warm season. To repot a Rebutia, ensure the soil is dry before repotting, then gently remove the pot. Knock away the old soil from the roots, removing any rotted or dead roots. Treat any cuts with a fungicide. Place the plant in its new pot and backfill it with potting soil, spreading the roots as you repot. Leave the plant dry for a week or so, then begin to water lightly to reduce the risk of root rot.
Grower's Tips
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 typical of many species, including a winter cooling period to promote better blooming. Water carefully, letting the soil almost dry out between waterings. The cactus must not be exposed to prolonged dampness and standing water. Never let your Rebutia sit in a dish of water. Instead of propagating your offsets, let the plant form a large cluster for the best viewing. When it blooms, it makes a stunning display. Lastly, fertilize during the growing season for the best results.
Source: about.com
Links
- Back to genus Rebutia
- Succupedia: Browse succulents by Scientific Name, Common Name, Genus, Family, USDA Hardiness Zone, Origin, or cacti by Genus