1 Salvia nemorosa from the mildly aromatic silvery green leaves to the violet flower spikes with purple stems. Bees love the flowers that stay looking sharp long after the petals fall, thanks to papery bracts that hold their colour.
Rose campion is unforgettable in full bloom because of its abundant hot-pink flowers. But before it puts on its floral show -- and after the flowers fade -- its silvery-gray leaves are ornamental on their own. Note: Rose campion can self-seed abundantly;