I think wheat straw is the wheat stalks that remain once the wheat has been thrashed. If otherwise - I need some more education. Wheat in VA is normally winter wheat & is planted in the fall, grows up until hard freezes force dormancy & then re-starts again in late winter early spring. It matures in May & is usually is harvested for the grain in late May early June. The remaining straw is also baled at this time (comes out of the back of the combine).