Grape leaves are certainly edible and there are a number of different recipes which you will be able to use when eating them, just so you can add some extra flavor. Those who grow their own grapes will need to make sure that they get picked in the early summer before they grow too tough.
It is also important to remember that you should check what you have sprayed on them, washing them off thoroughly before consumption.
New leaves that have been picked fresh off the vine can be both highly nutritious and delicious if you know what to do with them. There are lots of different ways to spice up almost any dish with grape leaves.