California, U.S.A. Harvesting varieties of artisan lettuce that were seeded so that they can be boxed or bagged as an assortment in the fields and shipped straight to market. It's challenging to plant and pick different kinds of lettuce at the same time. This company has seen a 20% increase in productivity per acre over the past ten years, by controlling soil diseases, water management, improved seeds, and better preparation of the ground.