I came upon rows and rows of cup plants along the banks of the river Neckar a few days ago. They are about 2 metres high and non native to Germany but I have no idea whether they are self-seeding or are meant to be there. Their Latin name is silphium perfoliatum.
Linked to Simply Snaps: Simply Flowers.
pictures imperfect blog 
Stunning yellow against the blue sky. I think the come from North America don’t they? I have the thought that they are perennial at the back of my mind.
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Yes, you’re right about North America. I only read up about them.
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Our neighbour in our previous house had some. I seem to remember they just kept coming.
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