This video of time-lapse root growth from the Alabama Agricultural Experiment Station and the Soil and Water Conservation Research Division of the USDA was done in the 1950s or ’60s. It’s a looong video, but it’s pretty neat.
There’s no arguing that, at first glance, the Silva Cell just looks like a hunk of black plastic. Its humble and basic form definitely doesn’t reflect the extensive design, testing, and engineering that has gone in to it. Here’s a brief overview of the why the Silva Cell is the way it is.
Back in March, we introduced our Stormwater Schematics for the first time. Last week’s webinar reminded me that I want to make sure everyone knows about these as they consider how they want to use the Silva Cell on their site. The Stormwater Schematics (look under the Standard Details, Specifications, & Schematics section) are there to help designers… More
It’s simple! A collection of some of my favorite New Yorker cartoons featuring trees.
Snowfall seems to have happened very late all across the country this winter, but now that it’s here, most people are trying to find ways to get rid of it. But salt, while effective for deicing roads and streets, can have extremely detrimental effects on trees, causing things such as necrosis, burned tips, or failure… More
The specifications for most construction project are filled with seemingly endless phrases of precision such as “not less than 100 percent maximum density,” “no variation greater then ¼,” “shall be at least .005 in thickness,” “minimum strength of 3,000 psi,” etc. Why is this? Buildings, bridges, roadways, utilities, and the like are all intended to… More
Through my work with DeepRoot, I’ve come to love and appreciate trees – especially urban trees – in a way that I never anticipated, so much so that I recently became a certified arborist. But my greatest love, since I was very little, was for animals. There is an intersection between these two interests, of… More
This post is now out of date! Please see the updated post here. In the day-to-day, we can become so focused on what isn’t working with the way we design and plant street trees that it can be difficult to focus on the people and places that are actually doing right by them. It’s just so… More
I read a lot of news stories about development projects described by words like sustainable, walkable, dense, and multi-use. These characteristics are experiencing a real surge in emphasis from both a design standpoint and from media coverage, and rightly so. They are some of the pillars of community design that support the physical and economic… More
To kick off 2012, we’re reprinting this great post written by Matthew Gordy for the Boston Society of Landscape Architects back in April 2011. One thing I love about this post is the theme of high performance. We plan and expect for high performance with other types of utilities and urban infrastructure because we want… More
I remember the first time I saw Harold and Maude. It was here in San Francisco, in Dolores Park, on one of their movie nights. I’m sure it was freezing cold and foggy. There is a scene, for those of you haven’t seen it or saw it years ago, where Harold and Maude liberate a… More
Community-based tree care organizations are a critical component of tree longevity in many cities and towns. These organizations provide training for volunteers to become advocates and stewards of trees in their neighborhoods. At Tree Pittsburgh, a non-profit in Pittsburgh, PA, this program is called Tree Tenders. Last week I talked to Tree Tender Nicole Moga…. More
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