Is My Tree Growing?

Are you curious if your tree is growing properly and what you should expect to see in the coming years? Trees can vary in the time they take to grow and reach mature size. When a tree is first planted, it focuses its energy on acclimating to the new environment and developing its root system; we call this phase of a tree’s life “establishment.” Each planting site is unique in the type of soil, water availability, light and microclimate, requiring each tree to adapt and grow differently. While the tree is establishing and focusing on root growth, there will be very little, if any, growth in the trunk or tree canopy. During the establishment phase, trees are very susceptible to any type of stress and are at the highest risk for mortality. Following care guidelines, including routine watering, and adding mulch to the base of the tree will limit transplant shock and stress trees can experience after planting.

Newly planted trees typically take 1-2 years per inch in caliper before the tree is established, meaning its root system can now support the growth of the rest of the tree. For our Be A Smart Ash free tree planting program, we plant 1 ½” to 2” caliper trees that will typically take 2-3 years to establish. Only once established will trees begin to grow in canopy size and trunk diameter.

It is important to keep an eye on your tree to look for changes in growth or potential issues related to stress, pests, or disease. In ideal conditions, trees can grow 1-2 ft. in height and 1 in. in diameter annually. Denver does not always have “good” conditions, with poor soils, extreme temperature changes and limited precipitation that can all impact tree establishment and growth.  Although it can seem like your tree is slow growing, it is putting immense energy both above and below ground as it absorbs nutrients, transfers water, sequesters carbon and releases oxygen…all while adapting to Denver’s tough climate! By continuing to care for your tree, it will continue to grow and care for you by providing shade and environmental benefits for years to come.

Google image, BASA Catalpa tree in 2021 and again in 2024.