Each spring, we eagerly await the moment our Spartanburg trees will sprout that first leaf–then another and another.

While it’s easy to see when Spartanburg trees grow new leaves, we can’t see when their Spartanburg tree roots are growing.

Luckily, our scientists at the Davey Institute study exactly what is happening underground with trees. With their discoveries, we can understand and care for Spartanburg trees better.

Below, learn how much Spartanburg trees grow each season and how you can help your Spartanburg tree roots grow more.

All About Tree Root Growth Rate in Spring, Summer, Fall and Winter

When do Spartanburg tree roots grow the most?

In general, Spartanburg tree roots grow the most in late spring through very early summer. Many Spartanburg trees experience another smaller growth spurt in early fall.

This second period of growth is very dependent on what kind of Spartanburg tree you have. Some Spartanburg tree species experience this. Some grow a little. And some don’t undergo this uptick in fall growth.

Do Spartanburg tree roots grow in winter?

Yes and no! As long as the ground temperature is above freezing, Spartanburg tree roots can and do continue to grow. As soil temperature moves closer to 36°, roots grow less. Then, once it’s freezing, growth pauses and resumes as soil warms.

Overall, it’s safe to say your Spartanburg tree roots do grow a bit during winter. But, from November to April, any root growth is a bonus.

When do Spartanburg tree roots grow the fastest? How can I help Spartanburg trees grow faster?

“Right now, there isn’t enough data or research to prove definitively when Spartanburg tree roots grow the fastest,” said Greg Mazur, a technical advisor at Davey with over 35 years of experience. “We do know that roots grow anytime the ground isn’t frozen–if they have the water, air and nutrients they need,” Mazur added.

Trees depend on us to provide essential nutrients, which are found in fertilizers. Once they have that, Spartanburg tree roots can keep on growing! Then, when the nutrients are depleted, growth slows or may even stop.

At Davey, our experts exclusively use Arbor Green PRO® to keep Spartanburg trees nourished each year. 60 percent of nitrogen from this fertilizer is available the first year, 30 percent the second year and 10 percent the third year. Our goal is to always make sure your Spartanburg tree has enough nutrients to keep on growing.

Click to read more about how fertilizer can help your Spartanburg trees – and their roots!