At FRF we have a (dimensions?) greenhouse paid for by Whole Foods, as a recipient of one of their quarterly 5% days. Almost all the materials used to construct our greenhouse were upcycled and repurposed for our needs. Most notably, this structure acts as a plant nursery and enables us to start our seedlings on site during the early spring, which ensures that we have transplants (partially grown plants)  in the field as soon as the weather permits. Additionally, the greenhouse provides the option of allowing our farm to run for four seasons by acting as a season extender. The greenhouse is heated both by electric heaters during the colder months and by passive solarization (55 gallon water drums buried in the ground that capture heat during the day and passively release it at night).