I think that the biggest challenge is going to be dealing with potato vines that emerge from other eyes on the potato piece, as well as pests that the potato foliage could draw that could also impact the tomato. Probably no need to do a graft - just plant a seed potato at the same time you settle in your tomato plants. (can't envision what the advantage would be, I guess).

The other potential issue is that late blight is spread by infected potato plants, so there is a slight but real risk, mediated if one is confident of the lack of disease on the potato seedling piece.

but as NRL asks (above), what would be the advantage?

(My gramps was a florist who used to try all sorts of crazy garden stuff. He best was hybridizing/breeding a "black" rose. It was really a deep-deep-deep indigo if you looked close enough.)

not sure if the grafts give any advantage, like when you graft a fruit tree.
these grafteds are popping up commercially. google ketchup and fries.

Last edited Mon Oct 26, 2015, 10:50 PM - Edit history (1)

(Images found on google.)

...I ate a tomato that had completely sprouted from inside. I left it with my parents, about a month ago, and when I visited a few days ago, it had completely sprouted from within.

I kind of wish I'd have planted it instead of eating it, but I have to admit... it was delicious.

TYY

never seen anything like that.

Never. That's why I kind of regret eating it instead of planting the sprouts.

But, as I said, it was delicious! Live food is supposed to be better for you, nutritionally. I like to soak raw almonds overnight in water, which starts the sprouting process and turns them into living food.

TYY