The Q&A Archives: grape vines

Question: i have 4 grape vines and doing well, but the grape cluster don't turn all red. we still have alot of unripened fruit in each cluster. what do we need to do to get these vines hardier to ripen all the fruit, or is there something that we missing in growing grapes. thanks

Answer: What you describe is called "shot grape" in the industry. To minimize this in commercial orchards where immature grapes in a cluster is not acceptable, the growers thin the developing grape clusters or painstakingly pinch off the undeveloping grapes so the rest of the grapes in the cluster fill in the empty spaces as they are maturing. I'd vote for thinning the grape clusters as they are beginning to form. This will result in fewer clusters, but larger and sweeter grapes. Give this method a try this year and you'll see a big difference in your grape harvest.

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