What is the first vegetable to push its green curly head from the ground? You were more than likely going to say asparagus but if you said rhubarb, you were correct. Most of you think of rhubarb as a fruit because it is commonly used in pies or jams, but it is classified as a vegetable. The precise origin of culinary rhubarb is unknown, but it was commonly grown in Scandinavia and England. It w...