Article / Updated 12-14-2022
Pacific Northwest, including the milder parts of British Columbia, has a long season from spring through fall. West of the Cascade Range, the lingering cool spring tends to favor cool-season annuals, and the relatively cool summers encourage spectacular displays of annuals. East of the Cascades, where winters are longer and much colder, the annual season is shorter, but the heat and the dry climate are terrific for sun-loving annuals.