Cultivation Classic, April 30

North Warehouse, 723 N Tillamook St., wweek.com/cultivationclassic. $40.

The nation's only competition exclusively for soil-grown cannabis free of mineral salt fertilizers and synthetic pesticides is hosted by Willamette Week, Farma and Cascadia Labs. More than 40 growers have entered 98 strains, and the Cultivation Classic Speaker Series is chock-full of acclaimed speakers like Jonathan Page, director of Anandia Labs.

Hemp & Cannabis Fair, May 14-15

Benton County Fairgrounds, 110 SW 53rd St., 541-201-8497. thcfair.com. $15.

The Hemp & Cannabis Fair is a traveling fair, celebrated in Corvallis in May, Alaska in June and July and Ashland in August. Despite different locations, each fair will host smoking and vaping accessories vendors, dispensaries, edible and hemp product vendors, plus speakers.

Oregon Hemp Convention, June 11-12

Portland Expo Center, 2060 N Marine Drive., 971-388-4392. oregonhempconvention.com. $15-$20.

Weed is legal, but hemp is still being used as a word to avoid saying weed, which is what this festival is really all about.

Weed Golf, June 30

Stone Creek Golf Course, 14603 S Stoneridge Drive, Oregon City, 503-518-4653, foretwenty.com. $100.

Last year's Fore Twenty Golf Tournament had sponsors at all 18 holes, "amazing, crazy" gift bags, and was packed with industry insiders. It's 15 minutes from Portland at Stone Creek, and there are 76 spots available.

Disc Golf Tournament, July 23

Pier Park, 10325 N Lombard St., seattlesuperchroniccafe.com. $25 to play, $100 to sponsor, $10 to get into the secret after-party.

For the rest of us, there's Josh Kincaid of SuperChronic Cafe's disc golf tournament in Northwest Portland. Play starts at 10 am, with teams of five playing two rounds of 150 minutes each.

Indo Expo, Aug. 6-7

Portland Expo Center, 2060 N Marine Drive., 720-403-4960, indoexpo.com. Ticket information not yet available.

This annual trade show in Portland and Denver is designed for people in the cannabis industry, including growers, manufacturers, wholesale vendors and the weed-smoking public. Trying to get hired? There's even a job fair.

NW Cannabis Classic, Dec. 3-4

Pure Space, 1315 NW Overton St., 253-495-5323. nwcannabisclassic.com. $25 in advance, $30 at the door.

A celebration of Oregon growers just in time for the holidays, this event centers on a growing competition, which is open to any grower, dispensary or delivery service—yes, that could mean you. Awards will go to best sativa, indica, hybrids, edibles and concentrates. The rest of the event is set up as a trading and tasting village full of vendors, live DJs and reggae bands, with seminars on growing and state regulations, and seed trading.