Can someone please give me a list of their best, floriferous and longest lasting dahlias for cut flowers in a vase. Thanks, from Western North Carolina

Balls and formal decoratives tend to last the longest in a vase.

A few of my faves (floriferous is a requirement in my garden)- Cecil, Brown Sugar, All That Jazz, Mystique, Ferncliff Thunder, Maarn, Peaches N Cream, Lakeview Lucky, NTAC Mia Li, Valley Porcupine, Blizzard, Hy Suntan, Jowey Winnie, Woodland's Merinda, Bloomquist Jean, Irish Blackhart, and River's Rosebud.

Thanks Melissa,
This is just the information I was hoping for.
I was planning on ordering 2 from your list, Peaches N Cream and Jowey Winnie. I will be looking at the rest of the dahlias that you listed and probably will add a few more to my want to buy list. Do you ever sell tubers?
Thanks again, Lisa

Those two are staples in my garden. I do sometimes sell tubers, but not usually until May. Some take a long time to wake up, and I don't want to sell or gift a dud.