Hemp Fest 2024 Seattle Washington. Seattle hempfest (seattle, washington) the seattle hempfest is the og weed festival that first kicked off in 1991 to garner support for cannabis legalization. Originally established as the washington hemp expo in 1991, hempfest is one of the nation’s oldest and most popular marijuana festivals.

In august 1991, a group of weed activists and freedom lovers gathered in volunteer park in seattle, washington for the washington hemp expo. Hempfest runs on volunteer power!