Mayflower' , one of the wood cranesbill species found naturally throughout Europe. It's one that I don't have in my collection. Although not really clear in this image, these have a distinct white eye to set off the violet-blue flowers that arrive in late spring to summer. It does not want to dry out and appreciates a nice, woodsy soil with good drainage, rated hardy from USDA zones 5-9. A lovely, cheery clump to set off its darker relatives.
Blooms are off-white during summer.
Most of these hybrids benefit from lifting and dividing every couple of years, too. These are plants for gardens just about everywhere, being rated hardy from USDA zones 4-9. Pulmonaria 'Cotton Cool' , A recent introduction form England, intrigues me. The leaves have a slightly P. longifolia look, as well as being almost entirely silver. This one has blue flowers in early spring and is rated hardy from USDA zones 4-9.