Senecio maritima - Cineraria Dusty Miller
Dusty Miller is grown primarily for its attractive silver-gray foliage rather than its yellow flowers. In fact, most gardeners prefer to cut off the flowers to encourage leaf growth.
The plant is often grown in formal bedding schemes, but looks equally effective in informal or cottage-style designs.
Dusty Miller is a nice addition to a colorful container garden, and makes a nice edging for your borders . Very winter hardy.