Mine have survived several years but I couldn't say they re thriving. I need to plant them with something that will support their growth and will protect them from over-ambitious weeding. What do you grow yours with? I am thinking maybe lilies?

I am not sure when yours flower
mine are long gone for the season
I have several planted among the daylily row and some in a perennial bed with my hardy geraniums.
I have the ones I use for cutting in the cutting garden with other perennials daises and annual snapdragons.

I think they would pair with just about anything that has enough sun.
(maybe not hosta)