(Plum Tomato) For the tomato connoisseurs out there, ‘San Marzano’ is the top of the line. Compared to Romas, ‘San Marzano’ is thinner and has a more pointed tip. Fruits on average weigh 4 ounces, Mature plants reach 40-48 inches tall and can spread to 18 inches wide. Known for its thick flesh, and fewer