If you think you harvest winter wheat in winter and spring wheat in spring you’d be completely wrong. Winter wheat is actually planted in winter and spring wheat is planted in spring. That means that winter wheat is harvested in spring and spring wheat is harvested in late fall/ early winter. Winter wheat is hardier than spring wheat which gives it a higher protein (gluten) content. That means it is good for making breads and other yeast leavened things. Spring wheat has less protein content and is used in cake and pastry flours to make more delicate baked goods.