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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.
Cane or spur pruning. Canadice: early ripening, more winter hardy than most seedless grapes, although trunk injury has occurred on some sites. It produces medium (6 - 8) clusters with small red berries that have a spicy grape taste. Excellent for fresh use, good for juice, jelly, and wine. Vigorous grower; sets lots of fruit reliably.