Thephrocactus weberii is one of the smaller South American opuntoides that are getting more in fashion with the collectors in recent years. It is very easy to grow plant densely covered with brown, white or yellow spines.
Flowers in culture are not so common treat, mainly due to the larger plant size that is required for successful blooming. What makes it even more difficult is the annoying manner of the plants long and barbed spines to hook on everything, making you accidentally break off the stem segments that are not that tightly attached to each other. Each segment is ready to take root, making this behavior a great propagation strategy in the wild, but not so pleasant in the pot culture.