"I have some small tubers putting up tiny 1" plants."
I have always been fascinated that small tubers can produce giant plants. My Ginger Willo Poms are usually large tubers, sometimes like Idaho potatoes, my AA Kelvin Floodlights are usually small tubers the size of my thumb, or less., But I suppose if you can grow from cuttings, then the size of the tuber doesn't really make a difference.
Cuttings aren't something I have done much of. I did a couple last year successfully, but this year, I have so many new tubers, that I don't have room for multiples, so I am not bothering.
I do have one tuber that has put out the tiniest (in diameter) sprout I have ever seen on a Dahlia, it will be interesting to see if it thickens up properly. Right now it is about the diameter of a piece of spaghetti.
