Growing 5 feet tall and wide, its soft, feathery flower heads sway in the slightest breeze.
7 of 9Bob Wigand
8 of 9Ernst Kucklich
An artichoke relative (obvious when you look at the two plants side by side), this has edible stems and thistle-like flowers. But most people grow it for its architectural good looks. It gets very tall (to 12 feet) in the Northwest. Do not plant in mild-winter climates, where it has become an invasive weed.