A few good tuber producers that I have grown include Chilson's Pride, Miss Rose Fletcher, Zorro, Weston Spanish Dancer, CG Coral, Pam Howden, Ruthie G, Wyn's Conquistador, Wyn's King Salmon & Wyn's Sensation.
Ellie

I'm curious, why are you looking for good tuber producers? You planning on cooking up some Dahlia's yam style?

If its more plants you want, have you considered taking cuttings in the spring?

Cheers,
Russ

The better the tuber production, the more chance of not losing all of it in storage-- & the more tubers to trade or sell at tuber sales or markets in the spring. Also- if you're selling them as a business it's way easier to ship tubers than rooted cutings & all that entails with soil attached.

yeah, what Plantlady said. Plus, I like to share the Looooove baby.