I looked it up on myhostas.be website.
It is REGISTERED as Hosta 'T N T'
Mark Zilis/Mary Beth Vanous 2010

The description is "Much thicker substance and much wider margin that its mother plant. " which is of course 'Paul's Glory'

Written without spaces between the letters, nothing showed up.
But, the Zilis/Vanous version is registered. I think that may be Jim's catalog listing, just not accurately edited.

Thanks for the heads up on this one. If my Hosta 'Popcorn' does not come up this year I was thinking going for the bigger bang ... Hosta 'TNT". I'm also aware that there is a Hosta "Dynamite" as well.

... I think you get the idea of where my garden is at! (smirk) MWHahahahaha

Peter Kelley
St. Paul, MN USA