Pines are common trees that grow around the world with over 100 species known to exist. On average, these trees can live between 150 years to as much as 1,200 years.
The longest living pine species is Douglas Firs which lives between 750 and 1200 years. Other types such as Blue Spruce and White Pine live between 150 and 450 years.
One of the oldest living pine trees is the bristlecone pine, which is thought to have lived over 4,600 years. One of them is present in the Great Basin National Park, located in Nevada. However, the length of time that the tree lives largely depends on the weather conditions and the soil which causes one type to have varying lengths.
How fast do pine trees grow?
Pine trees grow rather slow. While there are fast-growing types, they do not grow as fast as many deciduous trees. Therefore, you do not expect the tree to grow to amazing heights in a short period.
However, given that it lives for hundreds of years, the tree gets rather tall and thick. Most pine species have growth factors of seven and below meaning that they do not get taller and thick fast.
To encourage the longevity of a pine tree in suburbia is to prune it on a regular basis. By removing some of the burden in the form of branches, the tree has more reserves and resources to put towards healing and new growth.
What’s the average lifespan of a pine tree?
The average lifespan of pine is about 200 to 300 years. Most of the pine species are able to live this long without a problem. Many of the species may not live that long as they are trimmed and cut within the first 100 years of their life. It is most likely that most of the pine trees that are not in protected zones are between 50 and 100 years old. In the park, you will find between 100 and 300-year-old pines.
How can you tell the age of a pine tree?
As the pine trees get old, the tree trunk gets thicker. After each year, a layer of wood adds to the previous layer. When the tree is cut, it is easy to estimate the age of the tree by counting the layers of wood that have been added to the core. However, since cutting the tree down is not a practical way of determining the age of a tree, you can estimate the age of a tree by determining the diameter of a tree and multiplying it with the growth factor.
You find the diameter of the tree by measuring its circumference then using the formula (circumference = pi x diameter) to determine its diameter. Then, multiply by the growth factor. A growth factor is a number assigned by the International Society of Arboriculture depending on the speed of growth of a given species.
How much does a pine tree grow each year?
Just like many other types of trees, pine trees are generally slow growers. However, the rates of growth differ from one type of tree to another. The slowest growing pine trees grow about a foot each year with the fastest growing to about two foot a year. Examples of the slow-growing pine trees include long-leaf pine and Virginia pine. The fastest-growing ones include Austrian and Red pine. There is an exception for some species such as White pines which grow between 8 inches and 12 inches per year. Like said earlier, the growth conditions affect the rate of growth for the pine trees. With good management and right conditions, your trees can grow at peak growth rates.
How tall do pine trees get?
The length of the pine tree largely depends on the species of the tree. Some dwarf species such as mugo pine, (called Pinusmugopumilio) grow to a maximum height of about 4 feet. On the other hand, the popular White pines grow to a maximum height of about 150 feet. Slash pines can grow up to 100 feet. Numerous other varieties can grow higher or lower than the examples stated above. Again, like other tree characteristics, the length of the pine might be affected by growth conditions such as water, nutrients, and the general climate zone of the area.