Cycas revoluta Grow a living fossil! Growing Sago Palms from seed is very easy. This plant has become one of the most popular plant for the landscape. Sago Palms are not palm trees at all. They are actually a cycad. They are one of the oldest species of plants that still exist. Appearing on earth during the Paleozoic Era from 350 to 250 million years ago, they were growing long before the flowering plants appeared. Would you believe that they were the dominant plant in the Mesozoic Era and lived right along side of dinosaurs! Because of this they are called "living fossils." This era is actually called the "Age of Cycads." These plants have changed very little since that time.