I think cvw1004 is correct. I have never seen one like it and my first thought is that it was associated with a product launch. I know it is not from Jardin sur Nil, but as I look at it, it does look like the colors of the bottle of Jardin en Med. It is very pretty.
If you are truly desperate, I would send the photo to Hermes and see what they tell you. You can reach them at the customer service link on Hermes.com.
I am reading a book now about the launch of Jardin sur Nil - Med was the one right before it, and Hermes was putting a lot of effort into the "Jardin" series - I would bet that this scarf is from that launch!