Shmoop has a distinct, consistent voice. We prefer to present our content as a unifed corporate publisher, which is accomodated by all three of the major citation styles-MLA, APA, and Chicago. For more information, see our How to Cite Shmoop page.
The color of the vine also indicates when to harvest Concord grapes. Throughout the growing season, the vine and stems are a light to medium green. When the vine and stems begin to turn to a light then medium brown, it means the grapes are ripening and ready to harvest.
I'll show you how to tell when the grapes are ripe and I'll show you some measurements to be sure, because it's important. After all, better grapes mean better wine. The most important day of the year is the day you pick. It sets in motion the annual harvest and it also determines the kind of wine you'll make. As a grape grower and a wine maker you should keep a notebook. You'll be glad to have records in the months and years to come. Let's start with sight, touch, smell, and taste.