We moved into a house (three years ago, May) that has some grape plants
and while we get great vines and the young leaves are tender & delicious
when stuffed, we haven't seen one grape. Our neighbors told us that she
remembered that the vines did yield grapes in past years.

It isn't as though we get grapes & birds/animals eat them, or we lose
them to some disease, we don't even see any baby grapes!

Does anyone have any ideas or suggestions why this is happening and what
I should do to get a grape or two?