When trading began between America, Africa and Great Britain, it became known as the Columbian Exchange. During this time, America became the new-found land. There were crops grown there that had not been grown or could not have been grown anywhere else. Now, British and others in Europe and Asia had access to food that they had never heard of before.
The British brought cabbage, cauliflower, collard greens, cantaloupe, barley, basil, black eyed peas, carrots, coffee, cucumbers, flax, garlic, ginger, okra, oregano, onions and mangos, to name a few. There were hundreds of crops that the British brought over to America. Unfortunately, the worst was probably disease that was brought over. The most life-changing for the worst also was probably sugarcane.