We first noticed the yellow fields when Couch Surfer was here, on our drive to the Chocolate Factory. We aren’t used to field being this vibrant! They have been a big point of discussion this Spring. So, what exactly is it?
The first thing I was told was Canola. Then I was informed it wasn’t canola but grape seed. Finally, I was told it was a type of green for salads. I think that S solved it by meeting a farmer and concluded it was actually “rape seed”.
Whatever it is, I sure can tell you it is miraculous to see:
A patchwork of yellow at the foot of the Alps
Fields of yellow
Moo cow with the yellow fields. Sorry, I still like taking pictures of cows.
More and more yellow
The Swiss Watch Blog 
Yes, I was also told it was rape seed… but apparently canola is a type a rapeseed, and the particular kind they grow in Switzerland is canola (that’s the consensus among some professors at the University of Zurich).
I was told it was colza, which I thought was the same as canola, but Wikipedia leads me to believe otherwise.