Sea holly is a striking perennial that makes an ... It works equally well in cottage gardens, Mediterranean-style gardens, as part of a perennial border, or as an accent plant.

The plant thrives in USDA Hardiness zones 3 to 9 (you can find your zone here). Sea holly grows in a tall, clumping format, maxing out around 2 to 3 feet tall and 1 to 2 feet wide in its second ...