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Trees

Trees are important

Trees promote soil stability, reduce flooding and runoff, filter air pollution and traffic noise, provide shade, and add to the overall livability of Gresham.

Benefits of trees

  • Air conditioning costs are lower in a tree-shaded home; and heating costs are reduced when a home has a windbreak.
  • Trees bring natural elements and wildlife habitats into urban surroundings.
  • Leaves filter the air we breathe by removing dust and other particles; absorbing carbon dioxide and various air pollutants.
  • Trees help cool the environment.
  • Learn more about the benefits of trees.

Trees add value

By caring for the trees on your property, you're making an investment for yourself and future generations, as well as the community. Property values of landscaped homes are 5%– 20% higher than non-landscaped homes.

Definitions
Tree Regulations
Tree Removal
Tree Trimming
Street and Sidewalk Trees
Planting New Trees
Significant Trees
Tree City USA

The Arboretum

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  • The Arboretum is a special place to enjoy the wide range of trees that thrive in the city. Visit the Arboretum at 2303 SE Palmquist Road at Gradin Community Sports Park.

  • The Arboretum is organized around four areas that make up fall, winter, spring and summer tree collections.

  • The street tree demonstration along Palmquist Road includes 25 of the best-known and newest street tree species. Interested in planting street trees in front of your house?

    City-approved street trees

  • Located on the north side of the park, this collection underscores how large conifers can be used as screening among pockets of deciduous trees and drought-tolerant native shrubs.

  • The idea for an arboretum was first suggested in 2009 at a public forum for the Urban Forestry Management Plan. GreenWorks developed the site plan with input from the public and the City's Urban Forestry Subcommittee. 

  • Still a labor of love, the Arboretum will one day include more than 400 trees of almost 300 varieties.

    Arboretum site plan

  • A perimeter buffer on the west side of the park repeats the theme of the four seasons and examples of native trees for parking lots and large canopy trees with tall frames for parking lots.

  • Many local groups, including the Rotary Club of Gresham and residents on the Urban Forestry Subcommittee, volunteer time and resources to Arboretum plantings and projects so it continues to grow. Development takes place as funding is available.

  • The Arboretum features a one-mile paved path to see the trees, located around the perimeter of Gradin Sports Park. 

  • Signature tree species are repeated throughout the Arboretum, including Flowering Dogwood (Cornus 'Eddie's White Wonder') and Hogan Cedars (Thuja plicata 'Hogan').

  • A sugar Maple shows off its fall foliage at the Arboretum.