A Plant I've only seen growing in our garden

This plant is a fantastic structural plant, it is known by many names, Elecampane,Wild sunflower,Horse heal and in Welsh it is known as Marchalan. I believe nowadays as a drug it is seldom used except in veterinary practice. Folklore says that its name botanically Inula helenium derives from Helen of Troy, it is said to have to have sprung up from where her tears fell.It is great to see in the summer all these 3-4" sun flower heads on 6-7ft stems and so easy to establish from seed if any one wants any get in touch in the autumn, anyway as a wilflower I've only seen it in flower in our garden.As you can see the plant is only just starting to  grow.