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How to Maintain Healthy Soil for Trees

Soil science is very interesting. The complexities of ions, pH levels, nutrient uptake, and soil horizon are indeed as diverse as they are complex. The health and micro-diversity of the soil greatly contribute to the health of trees. Soil maintenance is often overlooked when it comes to tree health and maintenance. The problems we see…

What Are Portland Heritage Trees?

Have you seen any large and old trees around Portland and noticed a small black plaque near the base of the tree? Portland, Oregon, currently has one of the country’s largest registries of significant urban trees. The Portland Heritage Tree Program recognizes nominated trees by their size, age or historical significance. Homeowners often nominate these…

How to Mulch Trees and Plants during the fall

“I know we’re supposed to do something to our trees in the fall, but what?”  Tree owners often feel compelled to spray, prune or apply something to their trees and landscape plants on a regular basis. But, unless there is a specific reason to spray, prune or apply things to landscape trees, the best thing…

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Don’t Touch Trees in Wires

Why You Should Not Touch Trees Near Electrical Wires Homeowners can easily become injured – often fatally – while attempting to trim trees near overhead electrical wires. Though trying to save money with this “do-it-yourself” approach is tempting, the potential for electrocution is not worth the risk. Terrible accidents can happen when a homeowner uses…

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Tree Topping – Can it Hurt Your Trees?

We often come across this conversation in the field, and it continues to be controversial today. As we develop our understanding of tree biology and continually update our methods and application of these skills and knowledge, our best practice is to better understand as much about the history of the site, the tree(s) in question,…