We grow all of our plant starts in a 30′ long tunnel in our backyard in Cedar Rapids (left), and we have now constructed 3 100′ long tunnels at the farm in Iowa City! These tunnels allow us to produce spring crops like radishes, carrots, lettuce, spinach, kale, and much more very early in the season, enabling bountiful harvests in May. These structures also offer sensitive crops like tomatoes shelter from harsh winds and rain. In late fall and early winter, the tunnels once again grow greens and roots, allowing harvests late in December. We also use them to overwinter crops like carrots, kale, and chard.