DailyTrib.com Support Community Press You can show your support of a vibrant and healthy free press by becoming a voluntary subscriber. Subscribe Now Ashe juniper pollen cones release pollen during cold weather, creating cedar fever season. In the Highland Lakes, cedar fever season peaks in December and January and is especially harsh after a cold front. Staff photo by Daniel Clifton ‘Tis the season for sneezin’ in the Highland Lakes, where Ashe junipers, or cedar trees, burst forth with allergy-inducing pollen every December and January. Cedar is one of the few plants that releases pollen in the middle of winter.