well like you said the only way they can mass produce (even a limited amount of say 100-200 plants) is to TC. I think I would be leery of ordering anything potted and just stick to the older field dug ones they offer. What I have ordered from them in the past did great for me, but they do send pretty small plants sometimes. I don't always get what I ordered, but they are a cheap place to get something colorful if you aren't picky that the names are right 100%. I just think the TC issue is shady. I'm fine with it, IF they let customers know ahead of time that it is TC. But they wouldn't do that, either way we don't know. But for now, I am not buying anything potted from them because I'm suspicious.