I grew it in a pot for a year, then planted the fabric pot last spring and got a couple small peaches last summer (13-15 brix from my notes). So this year is the first real crop.
Yeah, I lost most of the other grapes. But growing them in plastic bags seems to work pretty well. Of course, I lost some of the bagged ones as well.
When I sprayed the peaches with MFF around the start of July, I gave the grapes a quick spritz as well. It looks like it has helped with black rot- I got a ton of it on the unknown seeded grapes along the fence in past years. This year, I don’t see any except a few which are low to the ground that I may have missed. I’m sure animals will get most of them, but when I look at it, I think how massive the harvest would be (~50’ of a wall of grapes)- it would be a lot of juice, as I’m not thrilled with seeded grapes if they are smaller than a plum (muscadines are worth the seeds).