Weed comes from almost everywhere. With all the advances in hydroponic technology over the recent years anybody can grow it, it doesn't get transported/smuggled as much as it once did. The world no longer relies on places like Mexico and Columbia to supply cannabis. You get 17 year olds growing garages/attics/bedrooms full of it and making big £££/$$$. Believe it or not, a lot of weed is grown in Switzerland.