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urban trees


I think white pines are beautiful trees, especially at maturity, and they have the added advantage that they are one of the few conifers that don’t try to kill you with their needles. Besides working with the foliage, have you ever had to “rescue” a child who climbed too high in a spike-infested deathtrap of…Read more about Declining Pines of the White Variety[Read More]


Temperatures are finally dropping and leaves are changing color. Autumn is progressing well in my opinion. Before you know it winter will be here, and some people will be wondering is there anything to be done to better protect the trees around you?  The answer is yes, and I applaud you for your initiative to…Read more about Autumn Tree Care: “What Can I Do?”[Read More]


When transplanting trees, it is important to consider the long-term viability.  Since the typical life span of an urban tree is 7-20 years (USDA), proper establishment techniques are very important to decrease this mortality rate.  When a tree becomes established, it is much more difficult to correct below ground problems. Root deformations can occur for…Read more about Using Pneumatic Digging Equipment to Correct Root Deformations, Deep Planting, and Compaction on Established Trees[Read More]


Each year flooding from excessive precipitation occurs and create challenges for us and trees. The extent of damage from prolonged exposure to wet and waterlogged soils can drastically shorten the life of trees and create risk issues, however, many can be saved with proper action.



Plant Health Care requires education, experience, and credible resources to make informed decisions on plant interventions. These skills are needed especially for understanding and recognizing nutritional requirements as well.


Conifer cones are a perennial favorite for fall and winter decorations and crafts and it’s that time of year where we start looking for these coniferous fruits. Regardless, of the interest, there are some interesting facts and lesser-known biology behind our cone-producing trees.


Finally, spring has sprung and summer is on its way. The hot days and warm nights are welcome for us, but summer isn’t always so kind to our trees, especially in our urban forest and landscapes. Trees are dynamic living organisms that respond to external stimuli in very strategic ways and each season presents its…Read more about Summer Tree Care[Read More]


Pruning is an important maintenance practice on trees that is discussed a great deal. An essential part of making the pruning cut properly is the ability to identify the parts of a branch. Identification of the branch bark ridge and branch collar are vital to severing the branch in a place that facilitates fast and…Read more about Branch component identification for better pruning cuts[Read More]



After you have decided on the best species and cultivar (right plant, right place!) for a location, it’s time to inspect the plants from the nursery or garden center.  What should you be looking for when inspecting trees prior to transplanting into the landscape?  Here are a few: Look for structural defects (Fig. 1). Ensure…Read more about Selecting High Quality Plants[Read More]


Trees and shrubs can lose their leaves for many reasons. The maple tree in the cover photo is planted in a parking lot, and mulched incorrectly. The parking lot location gives the tree much less access to rainwater than a tree planted in a park-like pavement free location. Deep mulch piled like a volcano aggravates…Read more about Oystershell scale may be killing tree and shrub branches in urban tree plantings[Read More]


That “chill-out” time for our landscape is nearing the end and it’s time to think about tree maintenance. An important maintenance task is supplemental fertilization during early spring weather, especially if there wasn’t any type of fall fertilization. Let’s take a look at how a tree uses and gains energy during the year to understand why and when trees need nutrition.


Trees in our cities and towns beautify our urban landscapes, but they are more than just a pretty face. Their functional values are becoming increasingly more important in the midst of climate change and disappearing urban forests and woodlots.


The urban environment is tough for growing trees and our changing climate is going to make it even tougher. Planting trees is part of the solution, but not the answer. We can’t just keep planting trees; we have to start growing and sustaining existing trees.


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