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Articles by Dennis Tompkins
Did spring come early? | The Evergreen Arborist
Did spring come early? | The Evergreen Arborist
By Dennis Tompkins • April 13, 2016 1:30 pm

Have you ever wondered about Mother Nature’s ability to coordinate her activities as the weather warms and her world begins to awaken?

Read Story

Good time to prune trees, but do it right | The Evergreen Arborist
Good time to prune trees, but do it...
By Dennis Tompkins • February 17, 2016 3:33 pm

February through April is the traditional time for pruning fruit trees. Winter is also a good time to work on ornamental trees because it is easier to determine what needs to be pruned before new leaves begin to grow.

Read Story

Hot weather brings change in water use | Going Green
Hot weather brings change in water use |...
By Dennis Tompkins • July 15, 2015 2:00 pm

The recent hot, dry weather is causing many lawns to turn brown earlier than usual. Watering decisions are often complicated because most landscapes contain shallow-rooted lawns and flower beds as well as more deeply-rooted trees and shrubs

Read Story

Time to sharpen tools, tackle pruning | Going Green
Time to sharpen tools, tackle pruning | Going...
By Dennis Tompkins • June 11, 2015 5:37 pm

The annual growing season is well under way for trees and shrubs. Most will complete their new growth by late June to early July. As a result, some of your landscape may need a summer haircut

Read Story

Survey tall trees near homes and buildings
Survey tall trees near homes and buildings
By Dennis Tompkins • October 29, 2014 4:18 pm

A weak El Niño appears to be shaping up for the Pacific Northwest. This means increased chances for above normal temperatures and below normal precipitation for this winter.

Read Story

Lessons on tree watering systems | Dennis Tompkins
Lessons on tree watering systems | Dennis Tompkins
By Dennis Tompkins • September 17, 2014 3:40 pm

Tompkins explains information that may help homeowners make watering decisions for the next year

Read Story

Spring pruning season around the corner | Evergreen Arborist
Spring pruning season around the corner | Evergreen...
By Dennis Tompkins • February 21, 2014 3:34 pm

The recent snow storms and subfreezing temperatures in the aftermath of Seahawk celebrations mask the fact that the spring pruning season will soon arrive.

Read Story

Spring pruning season is just around the corner | Dennis Tompkins
Spring pruning season is just around the corner...
By Dennis Tompkins • February 26, 2013 6:16 pm

The spring pruning season is just around the corner. So it is nearly time to break out the loppers, clippers and saws. And do not forget the first aid kits.

Read Story

Avoid tree confrontations with neighbors | Evergreen Arborist
Avoid tree confrontations with neighbors | Evergreen Arborist
By Dennis Tompkins • January 1, 2013 8:14 pm

Trees can sometimes create turmoil between neighbors. These concerns often become more frequent as the winter storm season approaches.

Read Story

What a week it was | Evergreen Arborist
What a week it was | Evergreen Arborist
By Dennis Tompkins • January 29, 2012 9:55 pm

The devastation from last week’s storm exceeded that of the 1996 ice and snow event.

Read Story

Understanding what a certified arborist can do for you  | Evergreen Arborist
Understanding what a certified arborist can do for...
By Dennis Tompkins • January 7, 2012 7:30 pm

What the heck is a certified arborist? And why is the designation important to homeowner?

Read Story

Tips and ideas for a lovely Christmas tree | Evergreen Arborist
Tips and ideas for a lovely Christmas tree...
By Dennis Tompkins • November 29, 2011 6:50 pm

Yes, it is a bit early to begin to think about Christmas. The pumpkin season just ended and Thanksgiving just passed us by.

But America’s Christmas tree farmers are just beginning to get warmed up. They produce a true “real green” product that will create jobs, is grown in the U.S.A. and is recyclable.

Read Story

Spring planting time right around the corner | Dennis Tompkins
Spring planting time right around the corner |...
By Dennis Tompkins • March 6, 2011 9:35 pm

The predicted La Nina impacts on our weather ended up creating the severe winter conditions experienced back east and in Europe. Locally, our weather has experienced La Nina conditions such as record late snows and many days of below normal temperatures.

However, the spring planting season will arrive. The following tips will help homeowners make good tree planting decisions and avoid a few mistakes often observed by arborists.

Read Story

Time to break out the clippers and begin pruning trees | Dennis Tompkins
Time to break out the clippers and begin...
By Dennis Tompkins • February 8, 2011 9:17 pm

The winter pruning season is upon us. To date La Niña has spared us the often-predicted severe weather. So it is about time to think about breaking out the clippers, saws and first aid kits.
There are three major items to consider when planning your winter and spring tree work.

Read Story

Weather predictions and preparing your trees for the worst | Dennis Tompkins
Weather predictions and preparing your trees for the...
By Dennis Tompkins • January 9, 2011 11:12 pm

So what is all this talk about La Nina and the bad weather predicted between now and spring?
To answer this and other questions, I visited the National Weather Service facility at the NOAA station in Seattle.

Read Story

Care and selection of a Christmas tree | The Evergreen Aborist
Care and selection of a Christmas tree |...
By Dennis Tompkins • November 9, 2010 9:59 pm

Yes, it is a bit early to begin to think about Christmas. The pumpkin season just ended and Thanksgiving is lurking around the corner.
But America’s Christmas tree farmers are just beginning to get warmed up. They produce a true “real green” product that will create jobs, is grown in the U.S.A. and is recyclable.

Read Story

Preparing for a severe winter storm season | Dennis Tompkins the Evergreen Arborist
Preparing for a severe winter storm season |...
By Dennis Tompkins • October 15, 2010 9:41 pm

Weather forecasters are predicting a severe fall and winter because of the El Nina developing in the Pacific Ocean. According to a meteorologist with the National Weather Service, the region could see a reprise of the snowstorms of 2008, the floods of 2007 or the windstorms of 2006.

Read Story

Tough year for diseases attacking trees | Dennis Tompkins
Tough year for diseases attacking trees | Dennis...
By Dennis Tompkins • August 13, 2010 8:22 pm

The past spring was unusually cool and moist. Consequently, it was a bad year for diseases on certain kinds of trees such as cherries, flowering plums, dogwoods and other deciduous tree species.

Read Story

Answers for disease problems in trees and shrubs | Dennis Tompkins
Answers for disease problems in trees and shrubs...
By Dennis Tompkins • July 19, 2010 2:27 pm

“Everything was normal and then May arrived,” said Jenny Glass, plant diagnostician at the Washington State University plant clinic.
The cool, moist spring created ideal conditions for the disease rampage that has damaged many trees and shrubs. Cold temperatures last winter also affected numerous plants.

Read Story

Windstorm, hazards and insects : tree care not a stormy decision
Windstorm, hazards and insects : tree care not...
By Dennis Tompkins • May 12, 2010 10:53 pm

Between the recent windstorm, a missed call on a hazard evaluation involving a Corliss logging operation and a devastating insect attacking Enumclaw landscapes, it has been an interesting week.

Read Story

Spring pests are beginning to awaken | The Evergreen Aborist
Spring pests are beginning to awaken | The...
By Dennis Tompkins • April 10, 2010 3:44 pm

A new growing season is upon us. As new foliage begins to appear, various pests are lying in wait to begin their annual feasts. The following are signs of some of the more common and highly visible insects and diseases that are or soon will be visible.

Read Story

Early spring a time to make good tree planting decisions | Dennis Tompkins
Early spring a time to make good tree...
By Dennis Tompkins • March 9, 2010 10:11 pm

The spring planting season seems to have arrived a bit early this year. The following tips will help homeowners make good tree planting decisions and avoid a few mistakes often observed by arborists.

Read Story

Winter pruning tips for trees | Dennis Tompkins
Winter pruning tips for trees | Dennis Tompkins
By Dennis Tompkins • February 7, 2010 8:55 pm

Football season is over. Basketball is in full swing. Spring training is just around the corner. And, yes, pruning season is upon us. So it is time to break out the loppers, saws and first aid kits.
There are three major items to consider when planning your spring tree work.

Read Story

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