I have catmint volunteers [View all]

A couple of years ago, I planted Purrsian Blue catmint, which I like because it’s a neat plant that blooms all summer and also because cats don’t bother it like they do with catnip. This year it’s blessed me with a crop of volunteers. What I can’t get a straight answer for when I googled is, are Purrsian Blue volunteers from seed true, or will I wind up with some gangly mess of a plant? I’m never one to turn down free plants, but have also been disappointed by volunteers in the past.