In a recent post exploring the amount of soil it takes to grow a large tree, I challenged the notion that 1,000 cubic feet is a one-size-fits-all axiom. Ultimately, this rule of thumb allows only for the growth of a medium tree — and the more soil volume you include, the greater your chances of... More
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
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
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.
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
If you are of a certain age (like me), you remember when shopping malls were the place to be. However, online shopping and cultural changes have greatly impacted the popularity and profitability of malls, resulting in vacant storefronts and little foot traffic. Now, hundreds of “dead” and dying malls sit decaying throughout North America –... More
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
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
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
At DeepRoot, we promote large volumes of non-compacted, biologically active loam as essential for street tree health and longevity. Urban foresters generally adhere to the following minimums: 300 cubic feet for small trees, 600 cubic feet for medium trees, and 1,000 cubic feet for large trees. However, some municipalities are taking soil volume cubic feet... More
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