DULUTH — At this point in the season each year, Wrenshall's Food Farm usually has extra rutabagas, and they need people to sign up for the farm's community-supported agriculture memberships so the owners can plan for the next growing season. "So that first year, I think 2018, we were like, 'We've got extra rutabagas, let's just give them away,'" said Food Farm owner Janaki Fisher-Merritt. "We gave them away at our sign-up event, and it went well…