Posted: 24/07/2014 at 19:54
Lewisia do do that, it's a way of spreading, I find putting the off shoot onto moist compost encourages rooting, they break away extremely easily from the parent plant, and given a bit of tlc they root quite readily. I wouldn't give up on it, sharp drainage 50/50 grit/compost and water well. The technique used for rooting strawberry runners, i.e. pinning it to the compost helps.