The Little Gem is a popular dwarf cultivar of the Southern Magnolia tree, known for its compact size, fragrant white flowers and glossy, evergreen leaves. While it's called a "dwarf," it's important to note that it's still a tree that can reach a significant size, typically between 15 and 25 feet tall with a spread of 8 to 15 feet. It has a slow to moderate growth rate, adding less than a foot to a few feet per year, and can take around 20 years to reach its mature size