Here we are in late August and the red grapes have started turning red. I've been tasting one every few days to get the hang of it, but they are still quite sour. Grapes generally ripen between late August and late October, depending on the variety. As they will not ripen any further once they have been picked from the vine, they need to be picked only when they are ripe. This can be tricky. In cooler climates it can take longer to get to the required sweetness. We are keeping an eye on bird activity in the vineyard as the birds are always first in line for sweet fruit. We expect to receive an alert from Mother Nature that the grapes are ripe.
