Grapes grow on vines. You’re calling your plant a tree; just checking: Are you sure it’s a grape vine? Grapes should be pruned pretty severely to be productive, and this should be done when the vines are dormant.
Some grape vine plants are male; they flower but do not produce grapes (some people don’t want the fruit, they only want the flower).
You refer to it as a tree. It may be that no sunlight is penetrating the canopy. It would need severe pruning.
Those are just a few ideas. You could contact your local cooperative extension service and ask their opinion. Click on your state here and choose from the listings: https://www.almanac.com/content/cooperative-extension-services
Grapes grow on vines. You’re calling your plant a tree; just checking: Are you sure it’s a grape vine? Grapes should be pruned pretty severely to be productive, and this should be done when the vines are dormant.
Some grape vine plants are male; they flower but do not produce grapes (some people don’t want the fruit, they only want the flower).
You refer to it as a tree. It may be that no sunlight is penetrating the canopy. It would need severe pruning.
Those are just a few ideas. You could contact your local cooperative extension service and ask their opinion. Click on your state here and choose from the listings: https://www.almanac.com/content/cooperative-extension-services
We hope this helps!