No, I am not in the US currently, although I am American. I am in Thailand, at least for the next couple more years.
Have not seen anyone who grows this around here, thought it would
be nice to get, and shipping tubers is expensive.
Seeds are best in my book, since I can keep them, and the genetics will improve naturally.
Speaking of Comfrey Seeds, I did buy a few and they have proven difficult to sprout. I am going to try again soon after longer refrigeration period, hopefully a few will sprout next time.
I don't like the idea of buying bulbs from big plant merchants who basically clone the same plant a million times. This makes for very narrow genetic variation, so if there is something like potato blithe or Tobacco Mosaic Virus, the plants have no immunity and all will die at the same time.. This is probably what caused the potato famine in Ireland: poor genetic variation due to continuous vegetative propagation methods. I like Mr.
Sepp Holter's idea of propagating potatoes from actual seed, guess that's why he calls himself the Rebel Farmer...LOL.