Plant ID

egoodwinuk

Seen growing by the lakeside at Benington Lordship garden, Hertfordshire last month. Can anyone identify it please? 

Hostafan1

petasites japonicus purpureus

Silver surfer

Probably just Petasites japonicus......also known as butterbur, giant butterbur, great butterbur and sweet-coltsfoot, 
https://www.google.com/search?q=petasites+japonicus&tbm=isch&ved=2ahUKEwj0_fWs8YPoAhUDxeAKHbEJA6IQ2-cCegQIABAA&oq=petasites+japonicus+&gs_l=img.1.4.0l4j0i30j0i24l5.4736.5927..8314...0.0..0.108.890.5j4......0....1..gws-wiz-img.THetSiwIYiA&ei=ajphXvSgJoOKgwexk4yQCg&bih=937&biw=1920&rlz=1C1CHBF_enGB785GB785

Petasites japonicus purpureus is rarer and has coloured leaves.

https://www.keepingitgreennursery.com/products/petasites-japonicus-purpureus-purple-japanese-coltsfoot

Hostafan1

Silver surfer said:

Probably just Petasites japonicus......also known as butterbur, giant butterbur, great butterbur and sweet-coltsfoot, 
https://www.google.com/search?q=petasites+japonicus&tbm=isch&ved=2ahUKEwj0_fWs8YPoAhUDxeAKHbEJA6IQ2-cCegQIABAA&oq=petasites+japonicus+&gs_l=img.1.4.0l4j0i30j0i24l5.4736.5927..8314...0.0..0.108.890.5j4......0....1..gws-wiz-img.THetSiwIYiA&ei=ajphXvSgJoOKgwexk4yQCg&bih=937&biw=1920&rlz=1C1CHBF_enGB785GB785

Petasites japonicus purpureus is rarer and has coloured leaves.

Sorry, I was getting carried away, lol