I understand that growing fruit trees in a hardiness zone that's lower than recommended has a chance of your tree dying from frost damage.
However, what is the effect of growing fruit trees at higher hardiness zones than recommended? What happens to the tree and the fruit?
Today, I just bought a Hinnomaki Red Goosberry from the local nursery.
At the store, they claimed it was the correct zone range for our northern California town. However, when I went home to do more research, Starkbros says my zone is higher than the recommended range.