As the year winds down, we’ll be looking back at some of the project case studies we’ve completed in 2011. This case study — written in British English, for those of you in North America — discusses a trees and stormwater Silva Cell project in a Lidl car park in New Milton. You can find… More
Part 1 of this blog series summarized recent studies in Minnesota, Connecticut, New Hampshire, and King City, Ontario, which all found that the difference between summer and winter performance of bioretention systems is not substantial, even on sites with severe winters. Now that we know that, how do we go about maximizing bioretention performance in… More
Of all the benefits of urban trees that we discuss on this blog, there’s one that we haven’t addressed: food production!
You don’t need much experience in arboriculture or landscape design to notice that planting trees in cities is very different from planting trees in forest environments. There are many reasons for this, but perhaps the biggest is the difference in composition of the soil.
Research to date has shown that bioretention can be effective for water quality treatment and for preserving the pre-development hydrologic function of a site, but what happens when air temperatures dip below freezing? Studies indicates that with proper design and maintenance, bioretention can function well even in cold climates.
We’re sooo excited to be the cover store of the November/December issue of ReNew Canada Magazine!
As a soils guy, I have a lot of discussions with clients and colleagues about the quantity of organic matter in soil. Perhaps surprisingly, there is a lot of confusion and misinformation around this issue. What is organic matter, and where does it come from?
I have to admit that one of the things I love most about street trees is the wildlife they attract. There is something so wonderful about seeing a hummingbird zip around looking for nectar or hearing bees buzzing furiously as you pass under a particularly tasty tree. It feels extra special to see sites like… More
About a month ago, someone posting the following question to the ASLA group on LinkedIn: In his book Up From Roots, James Urban criticizes our profession for not knowing basic horticultural Principles. Is this crit valid? Over 50 responses later, some of them quite impassioned, and it’s clear that Jim’s book — and this question —… More
Sarah’s post last week got me thinking about fall foliage. Everyone loves the changing colors, but until recently I didn’t know why it happened. There are three primary factors that affect fall color: the length of the day/night, weather, and leaf pigments.
Many people and (dare I say) authors of this blog cite energy savings as one of many benefits of healthy urban trees. But where exactly do these energy savings come from? The answer comes in two parts: trees benefit buildings immediately neighboring them, and they also benefit the surrounding city.
It has all but come and gone here in the upper Midwest, but the fall season makes living in this part of the world well worth it. Fall conjures up so many great feelings and memories. It is a time when you actually enjoy wearing wool socks and sweaters, get to plan Halloween festivities and… More
Soil. Stormwater. Sustainable Infrastructure.
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