My first dahlia was 'Arabian Night' purchased from the dollar store. I loved it and it bloomed and bloomed and produced a mass of tuber to be stored over winter. I tried a few other decorative dahlias and wanted to try some of the dinner plate type. So I purchased Kidd's Climax. I've tried it for two years now without success of storing over winter. The plants just never produced much tuber. On the second attempt I tried wrapping what skinny little tubers there were to the plant in plastic wrap (which idea I had received from the forums) and that didn't even help. Just makes me wonder if these large guys put all their energy into producing these large flowers and not much energy into the root.
I'm really wanting some AA dahlias (or even A) for cutting as I feel like I could easily get $3-$5 per stem at the market after seeing a few in person at the state fair.
Does anyone have any suggestions of a few varieties that really tuber-up?