One plant stands out specifically for me as being a pretty face that underperforms in the garden for me.
I have received this plant three different times, even as a small clump. The color always has great appeal to me.
But, every time I plant it, the plants always reduce in number instead of multiplying. I still have it in a few places, but I think those are now all down to a single fan each. I have moved it on several occasions, given it extra water, extra fertilizer, more sun, and still it refuses to multiply and slowly fades away.