The will of plants to live in tough urban spaces – and of people to tend them – defies all odds. The space between the curb and the sidewalk is one of the toughest. Author Evelyn J. Hadden calls it the “hellstrip.” Also known as “park strips,” “planting strips,” or sometimes “medians,” these spaces generally… More
In recent years, landscape architecture has expanded beyond traditional projects to include land art projects, community-driven designs, and creative temporary uses for urban space. The range of these projects is vast and driven by human creativity, from Richard Serra’s project ‘Viewpoint’ in Germany, to Rebar Art and Design Studio’s ‘bicycle parklet’ located on Filbert and… More
Imagine you own a small vacant plot, less than a quarter acre, in a quiet residential neighborhood. Its slope and wedge shape makes it less than ideal for development, but it is not serving any purpose sitting vacant behind a fence. It gets plenty of sun exposure, has a nutrient-rich clay soil and is located… More
Thanks to widespread efforts to raise awareness of the large declines in bee and Monarch butterfly populations, most people are aware of the need to protect pollinators. Monarch butterfly populations have declined 90% in the last 20 years. Bees and other pollinators are in trouble too. Primary causes of the drastic declines in pollinator populations… More
We are all searching for signs in our lives. Which way do I go on this highway? Where should I live? Where should I work? We take internet quizzes to tell us what career we should have and what kind of dog we would be and in what country we were meant to live. We look… More
One of the questions I am most frequently asked is, “How often do you root prune?” This is a tricky question and one for which I wished there were a more clear cut answer. First let’s dispel a myth. Ready? Ok, here it is. We do NOT root prune every tree in the nursery. (Take… More
You’ve done your site analysis and ensured enough rooting volume for the tree. You spent time carefully selecting the right species and cultivar. You’ve even inspected nursery stock and rejected specimens with uncorrectable root defects. In other words, you tried to do everything right. Yet six months later, the trees don’t look so good. What… More
This article tells the story in words and pictures about the evolution of a sidewalk on a single block in San Francisco. The 20th Street Biophilic Landscape is on 20th Street between Alabama and Florida Streets. This block is a flat area that was on the edge of or part of a tidal marsh. In… More
Last year, Jim Urban wrote a post for this blog entitled Against Mulch. The principle reasons he cited for his position were: 1) Mulch floats and can clog drains and releases “lots of phosphorus” as it breaks down, and 2) work by Gilman et al. that suggest that mulch does not reduce evapo-transpiration. We discussed… More
My blog, The Garden Professors, has an ongoing and lively discussion about invasive plants. Let me state up front that none of the Garden Professors is promoting invasive plants. But the issues surrounding invasive plants are extremely complex and have profound implications for many groups with whom we work in landscape horticulture and urban and… More
Soil. Stormwater. Sustainable Infrastructure.
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