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What is the Silva Cell, and how does it work?

What Is the Silva Cell, and How Does It Work?

After a very (very) long time in production, we finally have a new video that explains – in just two minutes – what exactly the Silva Cell is, and how it can help you grow mature trees and manage stormwater at source. 

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Urban Trees for Carbon Offsets

This post is written by Melinda Housholder and originally appeared on Loose Leaf, the blog of American Forests.  Earlier this month, I attended a workshop in Davis, California, called “Urban Forests & Carbon Markets” that American Forests participated in and co-sponsored through a grant with the U.S. Forest Service’s Urban & Community Forestry Program. As California takes the lead to… More

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Suspended Pavement at the Bartlett Tree Lab, Year 8

Here is this year’s photos from the Bartlett Tree Lab study comparing different planting methods for urban trees. For comparison, check out last year’s set. And for a fuller chronological picture, you can see each year’s photos, from 2004 onward, here.

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How Deep Do Tree Roots Really Grow?

Our 2010 blog entry by James Urban, FASLA, on the topic of how deep tree roots grow is consistently one of our most popular. Obviously there is a curiosity about this topic and a need for useful data about it. But the original post is a little technical and not as image-heavy as we’d like. So… More

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Silva Cell Case Study: Planned Watermain Repair Winnipeg, MB

We previously took a look at how to do an emergency utility repair where a Silva Cell system is installed. Today we’ll look at how to do a planned repair. Broadway Avenue, in Winnipeg, which went in the ground in July 2007, was one of our first Silva Cell installations. Several years later, they had a planned… More

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Soil Volume Minimum for Street Trees Established in Oakville, ON

We like to keep track of cities that are doing more for trees, specifically by implementing minimum soil volumes for urban planting. I’m happy to share that we are adding the city of Oakville, ON to the list, where they have recently implemented a requirement that street trees be planted in 30 m3 (1,059 ft3) of soil… More

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Woodcut Prints Showcase the Beauty of Tree Rings

Great art shows us things we might not otherwise be able to imagine. Sometimes literally. I think that elusively simple quality is one of the reasons that Connecticut-based artist Bryan Nash Gill’s large-scale relief prints of the cross sections of trees are so compelling. They are collected in a new book that was recently released… More

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