JACKSON, Mich. A cooler spring in 2026 has led to a lower strawberry yield across Michigan, leaving customers at the Grand River Farmer's Market searching for a fruit that is in short supply. Cooler spring cut Michigan's 2026 strawberry yield significantly. High demand, short supply at Jackson's Grand River Farmer's Market. Blueberry season is next for shoppers who missed out on strawberries.Dodi Wheeler, who manages the Grand River Farmer's Mar…