Ever found yourself admiring a young, vibrant tree in your neighborhood or local park, and wondered what to call it? While it might seem like a simple question, the answer can vary based on the tree's species, age, and even its growth stage. Let's delve into the fascinating world of tree terminology to find out how to address these young, budding plants.

Firstly, it's essential to understand that trees, like humans, have different life stages. These stages are often defined by their size, age, and growth characteristics. So, how do you call a young tree? The term you use can depend on whether you're referring to its age or size.

Age-Based Tree Terminology
Trees, much like wine, improve with age. But unlike wine, they don't have a specific age at which they're considered 'young' or 'old'. Instead, arborists and botanists use relative terms to describe a tree's age.

Sapling: The term 'sapling' is often used to describe young trees. However, it's not universally defined. Some arborists consider a sapling to be a tree that's less than 20 feet tall, while others use it to describe trees that are between 3 and 10 years old. Regardless of the exact definition, saplings are typically slender, with a single trunk and a distinct leader (the main growing point at the top of the tree).
Seedling to Sapling Transition

Before a tree becomes a sapling, it's a seedling. Seedlings are newly germinated trees, typically less than one year old. They're characterized by their small size, delicate leaves, and lack of woody growth. Once a seedling develops a woody stem and grows taller than a few inches, it's generally considered a sapling.
For example, a young oak tree might be called an oak sapling. This term is commonly used by nurseries and garden centers to describe young, potted trees ready for planting in a home garden or landscape.
Young Trees Beyond the Sapling Stage

As trees continue to grow, they eventually outgrow the sapling classification. The next stage in a tree's life is maturity. However, the age at which a tree reaches maturity varies greatly depending on the species. For instance, a redwood tree might not reach maturity until it's hundreds of years old, while a dogwood tree can reach maturity in as little as 15 years.
Once a tree reaches maturity, it's typically referred to simply as an 'adult' or 'mature' tree. However, some arborists and botanists use more specific terms to describe older trees. For example, a very old tree might be called an 'ancient' or 'venerable' tree.
Size-Based Tree Terminology

While age is an essential factor in determining a tree's classification, size also plays a significant role. Trees can be categorized based on their height and trunk diameter, regardless of their age.
Small trees: These are typically less than 20 feet tall and have a trunk diameter of less than 8 inches. Small trees are often used as ornamental plants in gardens and landscapes. They're also commonly referred to as 'dwarf' trees, although this term can be misleading, as it often implies that the tree is a specific cultivar or variety that has been bred to remain small.



















Medium-Sized Trees
Medium-sized trees are generally between 20 and 60 feet tall and have a trunk diameter of 8 to 24 inches. These trees are often used as shade trees in parks and along streets. They can also be used as specimen plants in larger gardens and landscapes.
For example, a young London plane tree might be referred to as a London plane sapling if it's still in the sapling stage, or simply as a young London plane tree if it's already past that stage. Once it reaches maturity, it would be called a mature London plane tree.
Large Trees
Large trees are typically over 60 feet tall and have a trunk diameter of over 24 inches. These trees are often used as shade and ornamental trees in parks, along streets, and in large gardens and landscapes. They can also be used as windbreaks and for erosion control.
For instance, a young redwood tree might be called a redwood sapling if it's still in the sapling stage. Once it reaches maturity, it would be referred to as a mature redwood tree. Despite their immense size, redwoods are relatively fast-growing trees, and it can take as little as 20 years for a redwood sapling to grow into a mature tree.
In the world of arboriculture, there's a wealth of terminology used to describe trees at different stages of their lives. Whether you're referring to a tree's age or size, there's a term to suit your needs. So, the next time you see a young tree, you'll know exactly how to address it, whether it's a sapling, a seedling, or something else entirely.