A tree has reached maturity when it reaches the standard size for its species and climate. [2] X Research source Once a tree has reached maturity, it will usually stop growing in height. It will continue to grow branches, sprout leaves, and grow in width until it dies. [3] X Research source

If the growing season is only 2-3 months of the year (like in the Appalachian Mountains), a tree may only grow 1 foot (0. 30 m) a year maximum. If the growing season is all year round (like warmer locations closer to the equator), a tree may grow 2–3 feet (0. 61–0. 91 m) a year.

For example, a tree that is native to Australia will grow faster in a hot, sunny environment than in a rainy, cold area. If a tree is native to a temperate rain forest in the Pacific Northwest, it will grow and thrive in a moist, rainy climate.

For example, pine trees are known for growing very fast compared to other species. These trees grow toward the sun, which means they get more sunlight for photosynthesis than trees in shadier environments.

Since this is such an early stage of a tree’s life, it is a vulnerable time for the tree.

A tree does not produce seeds or reproduce during the sapling stage. [10] X Research source

An English oak tree, for example, reaches maturity after about 40 years. It will stay in this stage for about 80 to 120 years in total. [12] X Research source A rowan tree may reach maturity in as little as 15 years. It may complete its entire life cycle and reach its decline in 120 years total. [13] X Research source

A rowan tree may reach the ancient stage in as little as 100 years or so. A yew tree may take over 1,000 years to reach the ancient stage.

A tree may also decline or die due to environmental factors like wildfires or hurricanes. [16] X Research source Even when it reaches its decline, a tree will remain an integral part of an ecosystem. It may become a source of shelter for insects, birds, bats, and other small creatures, for example. [17] X Research source

How often you water depends on the amount of rainfall in your area, which can supplement your watering. Generally, water your tree 2 times a week in the first 2 months of its life. Then, water once a week. [19] X Research source

A tree guide can tell you where the tree you planted originated and what soil is typical in that location. That can give you an indication of how you can alter the soil with fertilizer to give your tree the nutrients it needs.