Kale can thrive in USDA zone 7 and above, withstanding temperatures ... grow over winter is garlic. This bulbous vegetable is ...
Perennial kale is hardy to USDA zone 7 ... the fall after the leaves have died back. Rhubarb is hardy in USDA zones 3-8. Wasabi, or Japanese horseradish, is a perennial, cruciferous vegetable ...