Californian voters can expect to receive free weed from some pot clubs in the city of San Jose for casting ballots in the state's primary elections this Tuesday.

The group's voter guide promotes politicians described by director John Lee as "friendly to the cannabis movement or at least better than the alternatives".

The city's cannabis collectives, which have also offered a voter guide to the elections, are offering free marijuana and discounts when members show a ballot stub or an "I Voted" sticker on June 3.