This glitch allows you to harvest a single plant you have grown as many times as you want.
To do this before harvesting your plants Save, go to Main Menu then Continue a bunch of times.
Each time you Save, Exit to Main Menu then Continue you gain an extra harvest on all your plants on the island you are currently on.
This ONLY works for plants that you have grown, NOT the wild ones.
This glitch might also work on the XBOX version of the game, not sure about PC.
This glitch also works on Shipping Containers.
-Have you tried reloading your save, game or console?
Saving and reloading is required to do the glitch
-Have you tried clearing the cache of the console by shutting down for 2 mins before rebooting?
-Is there anything else you tried to alleviate the issue? Please let us know whether it was successful or not.
-Please feel free to provide any other information you feel may be relevant to this issue.
See included video of outcome of doing the glitch.
-Images / Links - If you have any images or clips of the issue happening, please include them.