What is this Plant?
I had this 'plant' in a plant pot in the cold frame over the winter. It was growing well and I put it in the garden where it has also thrived. Unfortunately I have no idea what it is and hopefully its not a weed!! Does anyone know what this is?
Looks suspiciously like rosebay willowherb, but I could be wrong. I think it's a wait and see plant. If you don't like the look of it when it flowers, you can get rid before it goes to seed.