Quotes
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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June 19, 2022

What’s the Difference Between Urban Soil and Forest Soil?

You don’t need much experience in arboriculture or landscape design to notice that planting trees in cities is very different from planting trees in forest environments. There are many reasons for this, but perhaps the biggest is the difference in composition of the soil.

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April 4, 2022

Silva Cell’s Allow Trees to Thrive in Parking Lots

DeepRoot is key to the growth of urban forests everywhere for everyone to enjoy. Parking lots and car parks have not traditionally been designed with the health and longevity of trees top of mind. DeepRoot’s Silva Cell is intentional in creating more space and accommodating more soil where it is most imperative: at a tree’s... More

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March 2, 2022

Top 7 DeepRoot Silva Cell FAQs for Contractors

1: Can Silva Cells go around utilities? Yes, our modules can be moved and oriented to accommodate most utilities, footings, and other obstacles. Integration with utilities is by no means a barrier to using Silva Cells! Silva Cells are designed to be completely structurally independent, meaning it is not necessary for them to be in... More

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February 22, 2022

Silva Cells Can Be Installed with (around) Existing Trees – Part II

Following our post about critical questions to ask prior to using Silva Cells with existing trees, the following are a few examples of successful applications in the USA and Canada. As with any root pruning operation we always recommend close consultation with a local certified arborist. Gallant Ave | Deep Cove | British Columbia This... More

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February 16, 2022

Mass Transit Tree and Stormwater Projects With Silva Cells

Over 580 trees and 15,578 Silva Cells (and counting) surround mass transit projects throughout the United States, Canada, and the United Kingdom. Mass transit projects include light rail trains (LRT), bus stops and their streetscapes along routes, interchange restructuring, major city center traffic hubs, and accompanying pedestrian and cycling-friendly pathways. Whether by foot, bicycle, electric... More

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