Q.When do lifesaver succulents bloom?
It’s a lifesaver succulent plant

Certified GKH Gardening Expert
This depends. If it is a seedling, then it could take a few years. If this is from cutting, then it can flower at any time that the conditions are proper. This can be hard to achieve unless you keep the plant exactly as it needs to be kept. This article will help you to care for them so that you might get some blooms one day: https://www.gardeningknowhow.com/ornamental/cacti-succulents/huernia/growing-lifesaver-cactus.htm