Incidentally the other flowering plant seen in many of these photos (white to violet) is yet another non-native from Eurasia. Hesperis matronalis - dame's violet - a short lived perennial. It's everywhere on many rivers. Harmless enough (although classed as invasive in some states in the US), certainly prolific, but does not seriously out-compete the native vegetation, very attractive with a wonderful scent most noticeable on those warm, balmy summer evenings so common in Aberdeenshire. :lol: . Not all non-native plants are a problem. A few can actually enhance the environment and are a useful food source for bees especially in areas like this where modern farming has wiped out just about everything except neeps, tatties and barely. :roll: