Roma tomato is a plum tomato which is commonly found in supermercados.Son also known as Italian or Italian plum tomatoes. Maturing in less than three months, the plant itself grows up to 1.2 meters (4 feet) tall and weighs only 110 grams fruit (4 oz). The vines are purple and strongly fruit, making Rome a popular choice among gardeners who do a lot of home canning.