Red Navel Trees, or Cara Cara trees, are native to Florida but grow in humid areas across the southern United States and Central America. These orange trees can reach a mature height of 7 to 10 feet and grow 3 to 4 feet wide. The plant’s leaves are a deep green with yellow flowers, and the fruit is a vibrant orange. The fruit’s flesh is a deep red color, and it is separated into about 10 segments. The orange is medium in its size, and it is about 3 inches across. Unlike many other varieties of sweet oranges, Red Navel oranges are completely seedless. Red Navel oranges are an excellent source of vitamin C and meet 140 percent of the daily value. It also has a load of potassium, fiber, and folate as well, which can promote healthy and glowy skin, a healthy heart, lower cholesterol, and improve digestive health. Red Navel orange trees are best suited for USDA hardiness zones 8 through 11, and prefer humid and hot environments. They can withstand temperatures above 100 degrees Fahrenheit and as low as 30 degrees.