I found this in our local nature reserve. (See also PiP). The kind description of it would be as a "garden escapee", but I really didn't have an ID for the plant itself and had asked for assistance. With the ID provided below by Amelia Heath I am now confident that this is a Crocosmia species, also known as Montbretia.



As an aside, does anyone else find that the red tones of their images seem to be boosted when posted here?