Except for the last one, which I cut the stem in half and planted tubers and all. Did I just loose the Dahlias I that I planted only the tuber parts of?

I shoulda known to research first! But they looked like such nice plump bulbs.

Thanks
Jenny P

It is possible that you did them in, it is possible that they are going to be just fine!

I have a tuber from last year that some of the stem was left on, and the stem is sprouting like crazy. However, most of the time, the eyes come out of the tuber itself, very close to where the old stem was located. Some people call this area the "neck" of the tuber.

So... it is going to depend on just how you sliced and diced. If you completely cut the "neck" off all the tubers, then you may indeed be up creek without a paddle. However, it is more likely that at least some of your tubers have some area from which they can eye up.

This site has some great photos of the slicing and dicing of tubers, usually done prior to winter storage, but I separated all my tubers this spring.

http://dahlias.net/dahwebpg/TuberStor/TuberStor2.htm

Fortunately Dahlias are very hardy plants with a very strong will to survive, so it is not too likely that you killed them all, (if any at all.)

Thanks!
Jenny P