(WFSB) - USDA plant hardiness zones categorize ... of plants that can typically be grown in Zone 7 but may struggle in Zone 6 are pomegranate and fig trees as well as certain varieties of gardenia ...

If you live in a northern climate, you'll need to grow your pomegranate tree in a container to bring in during the winter, since most varieties of these trees are hardy in USDA zones 7 and warmer.

The importance of hardiness zones lies in their ability to help gardeners and farmers choose plants that will thrive in their specific region.