I'm in Europe now and I also ran into hemp growing on my in-laws property.
I tried it and then I tried a piece of rope and I got higher on the rope.
Back home in the USA we call this bunk weed. It has no potency what so ever but it is good if you want to mix it with good weed. It doesn't take anything away from the high but it's better then mixing it with tobacco like the locals here do.