background blue Cornish cornwall England english flowers germander Great Britain green leaves natural nature speedwell spring Veronica chamaedrys wild backdrop blossom blossoms bush bushes clary flower flowering plant garden gardening Germanders groundcover herb pink plant plants Purple loosestrife subshrub verbascum bells blooming broomrape Digitalis flourish foxglove garden scene magenta medicinal monkshood purple summer beardtongue digitalis plant Terrestrial plant