Pineapple Express star Seth Rogen and screenwriter Evan Goldberg have teamed up with Canopy Growth Corp. to launch a Toronto-based Canadian cannabis brand called Houseplant.

The Vancouver-born actor-comedian and the Canadian screenwriter with whom Rogen collaborated on the stoner film co-founded the Toronto-based company along with "other great friends and colleagues."

"We have been working on this quietly for years and seeing everything come together is a dream come true," Rogen said in an emailed statement.

"We could not be more passionate about this company and are dedicated to doing everything the right way. It is extremely important to us to treat cannabis with the reverence it deserves. What a time!"

Houseplant said Canopy acquired 25 per cent of the business, and invested working capital, but the new company would not disclose any further financial information.

Rogen and Goldberg are the business leads of the company, while Canopy in its role as venture partner is providing the facilities, expertise and infrastructure to grow cannabis.

"We have been getting to know the Houseplant team for quite a while now and continue to be impressed by their understanding of the cannabis consumer, attention to detail, and drive towards their vision," Canopy president and co-chief executive Mark Zekulin said in a statement.

Rogen, who has also portrayed pothead characters in films such as Knocked Up and The 40-Year-Old-Virgin, is not the first celebrity associated with cannabis to dabble in the pot industry:

Tommy Chong, one half of the Cheech & Chong comedy duo, has a line of medicinal cannabis products called Chong's Choice, available in certain states where legal.

In late 2017, director and actor Kevin Smith and actor Jason Mewes — better known as their stoner movie characters Jay and Silent Bob — entered into a brand licensing agreement with Hamilton, Ont.-based cannabis company Beleave Inc. to develop strains.

In 2016, rapper Snoop Dogg struck a deal with Canopy to grant the licensed producer the exclusive right to use certain content and brands such as Leafs By Snoop.

However, since Canada legalized recreational cannabis last October, these companies are subject to strict rules governing promotion of the products.

The Cannabis Act prohibits the promotion of cannabis, cannabis accessories or any service related to cannabis by means of a testimonial or endorsement or by means of the depiction of a person, character or animal, whether real or fictional. It is also prohibited to present cannabis or any of its brand elements in a manner that "evokes a positive or negative emotion" about a "way of life such as one that includes glamour, recreation, excitement, vitality, risk or daring."

Any promotion that could be seen as appealing to young people is also forbidden.

Houseplant noted that Rogen and Goldberg are not paid spokespeople, but founders and business owners who have been involved in its strategic development and decision making since the beginning.

"Since inception, the Houseplant team has maintained a strong focus on abiding by the regulations which is why, not due to a lack of opportunity both pre and post legalization, Seth and Evan have not participated in any cannabis related event or promotion in Canada," the company said in an emailed statement.

"They are founders and owners, not spokespeople for the brand and have been very careful not to confuse that."

Houseplant's team in Toronto consists of a chief commercial officer and marketing manager while its strains will be grown at Canopy's facilities in Smiths Falls, Ont., the company added.

The first strain Houseplant Sativa will be on sale at legal retailers in B.C. starting next month, with hybrid and indica strains to follow. The company said pre-rolled joints and softgel products will also follow later in the year as the brand rolls out across Canada.

Houseplant said it does not have any current plans to launch in the U.S. — where cannabis is legal for medical and recreational purposes in several states but is illegal federally — but both its partner and the company have "global aspirations."

The company said there are no current plans for any products branded with Pineapple Express.

Rogen and Goldberg's partners in Houseplant also include the California-based United Talent Agency through its business ventures group.

The pair have spent five years preparing for the launch, said Goldberg.

"We are so proud to be launching in Canada, our home… We're excited to be able to share our passion for cannabis with Canadians in this way," he said in a statement.