Hi, Does anyone know which Clematis this is? It starts flowering early summer and the flowers are huge. It's growing in light shade and the flowers open a little green so I think it may be brighter coloured in full sun. I planted this myself when I first started gardening and had not yet realised quite how poor my memory can be and the importance of labels so although I can't remember it's name I'm hopeful I will recognise it when I hear it, thanks