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The Summer of Tree Reckoning in the Media

A convergence of two connected elements in 2020 and 2021 is causing an outpouring of news stories this summer, covering tree equity and the role and impact of trees as a means to reduce heat impacts in all neighborhoods across America, not just some. The racial inequality and reckoning that the United States experienced in… More

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What Trees to Plant in Cities

Species diversity in the urban forest is an extremely important topic and – unlike so many other design choices that are hindered by lengthy planning processes, tightening budgets, and maintenance considerations – it’s something we can actually have an impact on in the short term as part of the ongoing cycle of tree replacement. I’ve… More

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What Not To Plant

Something simple and extremely fundamental must underpin any effort to increase the biodiversity of the urban canopy: adequate quantity and quality soil and water. That’s it. If a guy wanted to grow a great tree in a typical 4 x 4 urban tree opening, he could add macronutrients (NPK), micronutrients (Mn, Mg, etc.), compost tea,… More

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What Not To Plant

Something simple and extremely fundamental must underpin any effort to increase the biodiversity of the urban canopy: adequate quantity and quality soil and water. That’s it. If a guy wanted to grow a great tree in a typical 4 x 4 urban tree opening, he could add macronutrients (NPK), micronutrients (Mn, Mg, etc.), compost tea,… More

Read Article

The High Cost of Urban Monocultures

Tree species diversity is a critical element of ecology sustainability, the most urgent of which is to minimize the impact of pests and disease outbreaks on urban canopy cover. Anyone who has followed the introduction of Dutch Elm disease (DED) is already painfully aware of how devastating tree pest outbreaks can be. Where I live,… More

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The High Cost of Urban Monocultures

Tree species diversity is a critical element of ecology sustainability, the most urgent of which is to minimize the impact of pests and disease outbreaks on urban canopy cover. Anyone who has followed the introduction of Dutch Elm disease (DED) is already painfully aware of how devastating tree pest outbreaks can be. Where I live,… More

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How “Clean and Simple” Becomes “Dead and Gone”

Picture a schematic drawing for, say, a downtown revitalization project. You’d see bustling businesses, new bike lanes, colorful signs, and rows and rows of identical trees. As an arborist, horticulturist, and landscape architect I’ve given a great deal of thought to plant diversity over my career, and this practice of only planting a single species is… More

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How “Clean and Simple” Becomes “Dead and Gone”

Picture a schematic drawing for, say, a downtown revitalization project. You’d see bustling businesses, new bike lanes, colorful signs, and rows and rows of identical trees. As an arborist, horticulturist, and landscape architect I’ve given a great deal of thought to plant diversity over my career, and this practice of only planting a single species is… More

Read Article

Silva Cell Trees Reach New Height at Highgate: Tysons, VA

– What was once a suburban office complex and parking lot in Tysons, Virginia, is now home to a luxury apartment building and landscaped space. – Highgate at the Mile, on Jones Branch Drive, has 350-plus units and 35 lush trees along its perimeter. – Four years after 252 2X Silva Cells were installed in… More

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