Imperial Star Artichoke Plant-Delicious Perennial Vegetable-Easy to Grow- 4" Pot Sweet, mild buds stay closed longer on the plant Sweet, mild-flavored flower buds are round and thornless, for easier harvesting The flowerhead is eaten as a vegetable Immediate shipping in a 4" pot Hardy in zones 6-9. In cooler regions grow in a pot and bring indoors in the winter.