May 5, 2023

Silva Cells Build Large Trees in Towns of Any Size

From New York City’s Metropolitan Museum of Art to Wembley Stadium in London, DeepRoot has helped ensure the success of green infrastructure projects in big cities across the globe. But these high-profile initiatives are only part of our story — Silva Cells grow large trees in towns big and small, partnering with designers, engineers, and... More

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March 28, 2023

An Eco-Makeover at the Former Time-Life Building

Introduction A silhouetted cutout of Don Draper, the dashing protagonist in AMC’s Mad Men, extends his arm across the back of a commemorative park bench in front of the former Time-Life Building — headquarters of the fictional Sterling-Cooper-Draper-Pryce advertising firm in the award-winning series set in 1960s New York City. The history and cultural impact... More

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February 24, 2023

What Is Suspended Pavement?

Introduction When we talk about low-impact development and design today, the term “suspended pavement” is frequently used — but rarely defined. It’s important to understand this practice within the field of green infrastructure, so let’s examine what suspended pavement is as well as its history, uses, composition, and case studies. What is Suspended Pavement? Suspended... More

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February 6, 2023

Tree Trenches and Silva Cells: Working Together for Healthy Tree Growth

Introduction Planning a green infrastructure project is a complex endeavor with many intricate considerations — not least of which is the seemingly simple question: how will I grow big, healthy trees? Where will I plant them and how will I ensure they thrive in an urban environment? Let’s explore how tree trenches — also called... More

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January 17, 2023

How Wide Do Tree Roots Spread?

One of the most common questions posed when beginning an urban forest project is: how wide do tree roots grow? According to studies conducted by Colorado State University, most tree roots occupy an area two to four times the diameter of the crown. Other research done at Iowa State University suggests that roots may extend... More

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January 11, 2023

How Much Soil Do You Need to Grow a Big Tree?

Introduction The question of how much soil is required to grow a big tree is one that has been debated among arborists and landscape architects for decades — and the answer isn’t black and white. Space, pollutants, and engineering requirements are all major considerations that affect the growing conditions of urban trees. And, other than... More

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January 9, 2023

What is Soil Structure and Why is it Important?

A previous blog entry, Healthy Soils for Healthy Trees, discussed the importance of preserving soil structure from being destroyed by compaction. Together, soil texture and soil structure have the greatest influence on pore space in soil, and how easily air, water, and roots can move through a soil. Many people are aware of what soil... More

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