Rebutia krainziana

Botanists are unsure as to where the Rebutia krainziana is indigenous to. It is quite possible that this species is the result of a horticulturist's efforts. This globular cactus follows a clumping formation. One individual can reach an approximate diameter of 2.5 inches with an approximate mature height of 4 inches. As time passes, the Rebutia krainziana will continue to clump (as pictured here). At full maturity, It can grow clumps approximately 4" - 6" wide.

Blooming season begins during early spring. This species is typically one of the earliest Rebutias to show off its flowers. It will continue to flower on and off throughout the warm months. At the base of each head, flowers begin to form and bloom. Flowers continue to bloom more and more, but by mid-season the cactus hits a gorgeous peak. Interestingly, flowers can take on bright orange-red, dark red, orange, yellow and white colors. Initially, botanists believed that all Rebutia krainziana specimens presenting flowers other than bright orange-red were hybrids. Presently, the consensus is that the color differences are natural variations within the species.

The Rebutia krainziana requires full sun to light shade. During the summer months, water regularly. Do not over water. As a general rule with both cacti and succulents, wait until the soil has completely dried out before giving your friend more water. It is also important, however, to learn how to read your plant. A grow journal is always a good idea. During the winter months, keep dry. It is best to re-pot on a regular basis. Repotting increases both the number and size of your friend's stems. In turn, this increases the quantity of flowers produced. Repot annually until it reaches an approximate width of 4". At this point, you can repot every 2 - 3 years. Always re-pot at the end of winter. Avoid supplying your plant with water for 1 - 2 weeks after repotting. This reduces the risk of root rot.

Synonyms:

Rebutia marsoneri Werderm.
Rebutia minuscula var. marsoneri (Werderm.) Eb.Scholz
Rebutia krainziana Kesselr.
Rebutia calliantha var. krainziana (Kesselr.) Buining & Donald
Rebutia wessneriana var. krainziana (Kesselr.) Buining & Donald
Rebutia krainziana var. albiflora hort.
Rebutia krainziana var. breviseta (Backeb.) Donald
Rebutia calliantha var. breviseta (Backeb.) Buining & Don
Rebutia senilis var. breviseta Backeb.
Rebutia sieperdaiana Buining
Rebutia marsoneri var. sieperdaiana (Buining) Donald
Rebutia marsoneri f. sieperdaiana (Buining) Buining & Donald
Rebutia senilis var. sieperdaiana (Buining) Backeb.