Cathy Isom has a few tips, as well as the importance of growing the Mexican Sunflower. That’s coming up on This Land of Ours. The Mexican sunflower is an annual flower that has many names. It’s also known as the Bolivian sunflower, tree marigold, golden flower of the Incas, Japanese sunflower, and just Tithonia. Butterflies, bumblebees, hummingbirds, and other pollinators …