13- staggered roof greenhouse plan. build your own greenhouse with these greenhouse plans that feature a staggered roof for optimum light reception. the sturdy wood frame is covered with clear plastic and the large interior space will enable you to grow plenty of vegetables and flowers.. There is a great difference between the crops grown as starter plants and the greenhouse vegetables. masses tend to grow vegetables and fruits in their greenhouse where theyve control environment to control temperature, providing heat, extend the growing season and to protect them from frosting.. These 8