The Silva Cell system was developed with the goal of improving the urban environment by providing a means for trees to have access to the soil volumes they need to thrive, and by which stormwater can be absorbed back into the ground. At issue with integrating green infrastructure and products such as Silva Cells into… More
Bio char, or terra preta, is one of the best, longest lasting soil amendments known to humans. This pyrolysed carbon is a soil amendment that can include surprising ingredients such as rubber tires, biosolids, and food waste, has gotten a lot of attention as a low-cost, ecologically sustainable solution.
“Is it recycled?” This is a question that we hear all the time. While most of our other products are made of a minimum 50% post-consumer material, currently the Silva Cell is not able to incorporate recycled plastics (the steel tubes in the decks are 50% recycled). There are many reasons for this. Our fervent… More
Recently I had a chat with an arborist who was convinced that when a street tree dies it is related to root barriers. Try as I might, nothing could dissuade him of this notion. And that got me to thinking that after all these years, the idea of how root barrier work and what they… More
We recently got an inquiry from a reader in response to our chart, How Much Soil To Grow A Big Tree?, asking whether there is a way to estimate the DBH of a tree based on its caliper, or vice versa.
What is the difference between a complete street and a complete road? This is a distinction that I didn’t give too much though to until reading an entry on Strong Towns unpacking a problem that they term as the co-opting of complete streets.
Soil. Stormwater. Sustainable Infrastructure.
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