Quotes

Ask An Arborist

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.

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ASLA Releases Guide To Health Benefits of Nature

Over 50 percent of the global population lives in cities. Despite this – or maybe because of it – it is widely understood that spending time outdoors, in nature, instinctively feels really, really good to people. In fact, science supports that time in nature doesn’t just feel nice – it’s actually extremely beneficial for our… More

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Trees and Soils: Stormwater Superstars in the Greater D.C. Region?

Stormwater permits are maturing in the greater D.C. region, driven by Chesapeake Bay and Anacostia River restoration mandates.   Two of the three major Anacostia stormwater permits – for Montgomery County (issued in 2010) and the District of Columbia (issued in 2011), carry real clout in the form of retrofitting mandates with required numbers of impervious… More

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Against Mulch

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

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Why We Should Be Specifying More Bare Root Trees

“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

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Seeing the Forest for the TreesTD Green Streets: Actions, Ideas, and Engagement

This article is the first of a series that aims to plant innovative, inspiring, and actionable seeds in the realms of community-building, art, and arboriculture. These seeds will be planted by providing readers with information on funding programs and opportunities for environmental projects alongside discussion of related concepts/projects in contemporary art. What will grow exactly… More

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Montgomery County street tree

Bill to Protect Tree Canopy Passes in Montgomery County, MD

An exciting thing happened on July 23rd in Montgomery County, MD: Bill 35-12, which requires builders to replace trees that are cut down or disturbed during development as well as planting new trees on sites where they may never have existed in the first place, was unanimously passed.

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LEED V4: How does it affect trees, soils, and stormwater?

LEED version 4 (V4) is the fourth and latest iteration from LEED (Leadership Environment, Energy & Design), a rating system developed by the U.S. Green Building Council and independently certified by the Green Building Certification Institute. The primary mission of LEED is to encourage the marketplace to provide sustainable buildings, sites, and neighborhood development using… More

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Webinar: Using Trees and Soils to Manage Urban Stormwater

Due to technical difficulties that prevented some people from joining last month’s webinar with guest speaker James Urban, FASLA, on the topic of “Using Trees and Soils in Urban Stormwater Management,” we will be offering the same webinar again on September 4th at 10am Pacific (please note that the start time will vary by time zone).

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Water = Life for Young Trees

For a newly planted street tree, adequate watering during establishment is literally a matter of life and death. The establishment period and amount of water can vary depending on climate, soil type and tree species. A street tree in San Francisco planted from a #15 nursery container usually requires 15 to 20 gallons per week… More

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Trees in downtown Minneapolis. Flickr credit: urbanfeel

New Tools for Using Trees for Stormwater Management in Minnesota

Randy Neprash has been a champion of using trees for urban stormwater management for longer than almost anyone else we know. A water resources engineer and stormwater regulatory specialist for Bonestroo, now Stantec, Randy is also the technical consultant for the Minnesota Cities Stormwater Coalition, an organization of about 120 Minnesota cities that are regulated… More

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