NO LONGER AN x Echinobivia
Echinopsis ‘Rainbow Bursts’
x Echinobivia ‘Rainbow Bursts’
Echinopsis Zucc. is the accepted scientific name for the genus. It was named and described as such by Joseph Gerhard Zuccarini in Abhandlungen der Mathematisch (short version) in 1837.
Now a synonym, x Echinobiva G.D.Rowley, was named and described as such by Gordon Douglas Rowley in the Cactus and Succulent Journal in 1966.
As of 12-5-22 when this page was last updated, Plants of the World Online by Kew lists 20 species in the Echinopsis genus. There were 71 on the last update. It is a member of the plant family Cactaceae with 150 genera. Those numbers could change as updates are made on POWO.
THERE ARE SEVERAL LINKS AT THE BOTTOM OF THE PAGE FOR FURTHER READING.
I bought this Echinobivia ‘Rainbow Bursts’ from Wal-Mart on 2-1-16. The label said: ”Rainbow Bursts are so named for their spectacular display of colorful flowers during the spring and summer. These hybrids are cross (combined genetics) of Echinopsis species and Lobivia species, hence the name Echinobivia. Protect from frost.” The plant was growing in a 2 1/2” (4 oz.) pot. It measured approximately 2 1/4” tall x 3 1/2” wide.
Information online says Echinobivia ‘Rainbow Bursts’ can be white, yellow, gold, orange, pink, red, purple, and sometimes bicolor.
The genus Lobivia Britton & Rose WAS an accepted scientific name for this genus of cacti. It was named and described by Nathaniel Lord Britton and Joseph Nelson Rose in The Cactaceae in 1922. Most of the species formerly in the Lobivia genus are now in the Echinopsis genus and some were transferred to other genera. Many of those other genera were later transferred to Echinopsis.
While most of the Lobivia species and infraspecific names have been moved to the Echinopsis genus, a few were transferred to the Rebutia and Acanthocalycium genera. Currently, Plants of the World Online lists 20 species of Echinopsis (down from 71 on the last update), 19 species of Rebutia (down from 29), and 4 species of Acanthocalycium (down from 5). Likely, the missing species have become synonyms.
I moved the plants inside for the winter on October 17 (2017). The first stop was the basement where they were all photographed and measured. This plant was 2 3/8″ tall x 4″ wide. It didn’t grow much because it was 2 1/4″ tall x 3 1/2″ wide when I brought it home in July 2016.
All those kids can be removed and rooted or they can be left attached. I am opting to leave them attached because I certainly don’t need that many Echinopsis plants and how long would it take them to grow? I guess that calls for an experiment.
How would you like to sit on that? The top view of most cactus is just as interesting as the side view.
I put the Echinopsis ‘Rainbow Bursts’ on a table with most of the cactus and succulents in my bedroom for the winter. They received plenty of light from a south-facing window.
The Echinopsis ‘Rainbow Bursts’ was happy to get outside for the summer again.
I decided to put this plant and all its kids in a larger pot. It was beginning to bulge. Even though you are supposed to only increase the pot size by 1/2 to 1″ in diameter, I gave this cactus a bigger pot in case the babies fall off and need room to root.
I moved the potted plants to the front and back porches on July 4 (2018) because of a Japanese Beetle invasion. The plant tables were next to and behind a shed under a Chinese Elm tree which the beetles love. The beetles were beginning to sample a few of the other plants so I moved them. I moved most of the cactus to the back porch including the Echinopsis ‘Rainbow Bursts’. You can see the dead leaves from the elm tree in the pot.
Doing well in full sun on the back porch on August 26.
I measured the cactus on October 10 when I was getting ready to move the plants inside for the winter. The cluster of Echinopsis ‘Rainbow Bursts’ now measures 3″ tall x 5″ wide. It didn’t grow that much from the time I brought it home in July 2016 until I measured it last October. This time, however, it grew 3/4″ in taller and 1 3/4″ wider.
We had a couple of nice spring-like days in the last part of November, so I decided to take the cactus outside for a photoshoot for a new post. The post was for comparing the difference between the cactus I have in my collection. The post is titled Cactus Talk and Update…OUCH! and there is a lot of information.
Here you see the parent Echinopsis ‘Rainbow Bursts’ has very small spines and a little wool on the areoles. The hair you see in the photo is cat fur…
The offsets have more and longer spines in relation to their size than the original plant. The offsets grow between the areoles.
The Echinopsis ‘Rainbow Bursts’ is enjoying another summer on the back porch. The offsets keep getting bigger.
I had to move the potted plants inside on 10-11-19 because an “F” and lower evening temperatures were in the forecast. I don’t keep them outside if evening temps are going to fall below 40° F. As always, I photographed the plants before moving them inside and took measurements. The Echinopsis ‘Rainbow Bursts’ measured 3 3/8″ tall x 6″ wide. That’s pretty good considering it was 2 1/4″ tall x 3 1/2″ wide when I brought it home in February 2016. The offsets continue to do well and grow, too.
I repotted several cactus and succulents after I moved them inside for the winter so their soil would be nice and loose for the winter. The Echinopsis ‘Rainbow Bursts’ was getting a bit crowded so I put it in a larger pot. Normally I don’t increase the cactus pot size by that much but I thought this one needed a bit more room than usual. I know I should probably remove some of the offsets but I am interested in seeing how this all works out. Will she throw some of her kids off or will they eventually fall off on their own? 🙂 I am hoping she will flower soon…
Well, the cluster of Echinopsis ‘Rainbow Bursts’ keeps getting bigger. I had to move the plants inside for the winter on October 15 because an “F” was in the forecast. The group measured 4″ tall x 7″ wide and they are doing well.
The Echinopsis ‘Rainbow Bursts’ continues to do well and is STILL 4″ tall but has spread out another 1/2″ over the summer. STILL waiting for flowers…
Well, once again the potted plants had to be moved inside for the winter on October 16 in 2022. The original plant in the center measured 4 1/4″ tall and the whole cluster was 7 1/4″ wide… You know, it all depends on where you measure and how much water they have received. 🙂 Well, the water part is my opinion based on neglect…
This plant gets mealybugs over the winter, so I have to keep it away from other plants. I just dip a cotton swab in alcohol and then touch the mealy bugs. They just kind of dissolve.
There is quite a bit of information online about this genus and many species. It is quite celebrated due to their ease of keeping and especially their beautiful flowers. I will be glad when it blooms!
I will continue adding more photos and information as time goes by. If you have any comments, questions or suggestions, I would like to hear from you. If you can’t think of what to say, please click on the “like” below if you have visited as it helps us bloggers stay motivated. You can click on the links below for further reading about this AWESOME genus of cactus.