Can You Grow A Cactus From Roots Only?

Question

I had a beautiful Old Man cactus. I transplanted it and it died a few days later. Yesterday morning it looked fine, but by night it had turned to mush. I think it was because I didn’t know that I had to wash the decorative sand that I using to increase drainage before adding it to the soil. The roots appear healthy. Can I plant the entire root system to grow another plant?

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Answer 1

There are no guarantees but you can certainly try. Plant it in fresh cactus soil. I wouldn't water it for a couple of weeks.

https://www.gardeningknowhow.com/ornamental/cacti-succulents/old-man-cactus/old-man-cactus-care.htm