A mature artichoke plant reaches up to 5 feet tall and equally as wide. This stunning, half-hardy perennial vegetable has masses of 3-foot-long, silvery, deeply serrated leaves, and towering flower stalks. These flower stalks are topped with edible flower buds known as artichokes. Nearly 100% of all the United States’ commercial artichoke crop grows in California, where the weather is ideal for proper growth.
Artichokes are generally cultivated commercially in beautiful sunny California. With proper artichoke winter care, this perennial is hardy to USDA zone 6 and occasionally zone 5 if receiving mild winters.
Artichokes are native to the Mediterranean! This makes one think they cannot tolerate the chill of winter very well. Surprisingly, provided with proper care, overwintering artichoke plants is possible.