The new VA Medical Center in Orlando, FL sits on 65 acres of land and encompasses a total of 1.2 million square feet. This brand new facility will provide inpatient care for veterans in central Florida and is designed to deliver holistic health services, with a site that includes a therapeutic courtyard, seating walls, planters,… More
In August, Seattle released their Urban Forest Stewardship Plan, the first comprehensive update to the previous Urban Forest Management Plan (2007) that set the goal of increasing Seattle’s tree canopy cover to 30 percent by 2037. The 2013 Plan is broken up in six sections: guiding principles and integrated approach, the importance of Seattle’s urban… More
A study recently published in Urban Forestry & Urban Greening presents data showing that trees planted in paving can significantly reduce stormwater runoff. The results, published by D. Armson, P. Stringer, and A.R. Ennos, are taken from data collected in Manchester, UK from January 2011 to September 2011. The study created 5 test sites, each containing three 9… More
The design of urban hardscape installations is challenging at the best of times in that it must address a host of concerns related to surrounding land uses or facilities, different and adjoining pavement structures, new and existing buried utilities, stormwater management, and other systems or amenities that support the health and wellbeing of plants and… More
Ever wonder what kind of questions are asked at the “Ask An Arborist” booth at the local street fair? I spent a lovely afternoon recently with two colleagues at the Castro Street Fair in San Francisco. We handed out literature, shared reference books, and fielded questions like these.
Last month, I read an article about the merits of starting small when it comes to stormwater harvesting projects. The article started with the statement that some cities that have evaluated stormwater harvesting have concluded that the investment is too large relative to the benefits. It then goes on to examine the town of Wrightsville… More
I spent a good part of last winter completing a literature review on bioretention media for a revision to the Minnesota Stormwater Manual. So when I attended the Low Impact Development (LID) conference in St. Paul, MN earlier this month, I was very interested to learn of a recent specification coming out of New Zealand:… More
We recently learned that Tigard, OR, a town of about 48,000 people that is part of the Portland metro area, has implemented an impressive soil volume minimum for trees planted in streets and parking lots: up to 1,000 cubic feet of soil per tree.
In a recent webinar discussing the first principles of using trees and soil for stormwater management in urban areas, I mentioned that I am often not in favor of using mulch. In fact, I said that if it were up to me, mulch would not be included by default in most planting specifications. After the… More
“Bare root” is the form that most trees take when nurseries begin the several year process of growing trees for retail. The young trees must be handled carefully, are typically only available at certain times of year, and some species are sensitive to transplant as bare root stock. This has made it a bit tricky… More
We recently wrapped another video project! This one is about ArborTie, a staking and guying material from our legacy line. This video walks through the basics of the product and how to attach it securely to a tree.
A few weeks ago I attended the International Society of Arboriculture tradeshow and expo in Toronto. It was a fun show, with a number of excellent sessions and some great conversations. But the most fun part was getting a chance to go see some of our Silva Cell installations in the city, and the trees… More
Soil. Stormwater. Sustainable Infrastructure.
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