"Seldom do I see tubers for trade on Gardenweb, wonder why that is? " As a former Pa. resident and thrifty as they come it might be that I payed from $6 to $16 for my tubers. Now the wife and daughter eat, so do the dogs and cats. I also had to pay for shipping for those tubers. If it was not for how nice those flowers look I would not be growing Dahlias. They are more work then many other plants. They do stay in bloom for a long season. So to sum this up it would really have to be another dahlia tuber that I felt would add to my collection before I could part with any one of them. If other people feel that way you have your answer.

In my relatively short experience, I'd only part with a tuber after I know for sure I have a bloom of that variety. By that time, nobody would want my tuber.

Cheers,
Russ

vikingcraftsman, as a thrifty person you'll like this: when your tubers sprout in the spring, pop off one of the sprouts and root it in soil. When you pinch your dahlias, root the tips in soil. You'll have hundreds of dahlias in no time. They will have fully formed tubers by the end of the season. If you are uncertain how to root cuttings, there are excellent directions on the web. I have wondered why there are not more dahlias for trade on GW, just like the other posters, especially when they are so easy to root.

Good to know they can be propagated that way.
I grow hundreds of impatiens and begonias from cuttings. I better get going on the geraniums for next year.
It's fine to be thrifty, heck if I see a plant I know the home owner or business I just ask if I may have some seed. Then I reward them with more of their plants the following year.
Honestly, Dahlias are a bargain compared to some of the named daylilies I have purchased, yet I will split those for another want of mine.

FWIW, xanadu, my 170+ Dahlias this year were all from cuttings...but that doesn't necessarily mean you get hundreds of each variety. I have several varieties this year which have not propagated at all...granted, my fault (and spider mites,) but never-the-less I have no more propagating material for them unless I choose to buy new tubers.

Cheers,
Russ

My neighbor is calling me farmer Brown, so now that I know he is jelous I have started taking cuttings from my Dahlias. I will over winter them in my indoor green house. Then next spring I will line both sides of my drive way with pots of Dahlias.

If you want to grow dahlias from seed take your own seedheads and let them mature and shuck them in January and plant them inside in March/April and transplant them after frost. You will have all brand new dahlias, some bad some good, but they will be yours and if you get a really good one you could even put it in a trial garden.

Xanadu is correct in rooting shoots coming out of the ground. That is how I start many of my pot roots for the next season. Just pull them off the planted tuber carefully or you will jerk the entire plant out of the ground, put them in damp potting soil and in bright shade until they stand up. Harden them off in the sun and grow as pot roots.