The resolution passed the city council easily after a nearly four-hour debate that pitted small-scale “garden” growers against advocates of a bigger, industrial system that would become a “Silicon Valley” of pot.

“This is going to grow as an industry. And someone is going to have a high-tech producer,” Council Member Jean Quan said during the debate.

Oakland already taxes sales of medical marijuana, but cultivation has existed in a legal gray area. Council members plan later action to levy new taxes on growers.