Jackson Bottom Arboretum and Nature Preserve, Hillsboro, OR - Arboretums on Waymarking.com

Here is some of the text on the introductory sign at the Arboretum:

"ARBORETUM
Trees shade streems, control erosion, offer recreation and products for people, and provide homes and food for wildlife.

An arboretum is a park-like place where a person can study trees. What is our state tree? It is the Douglas fir or Pseudotsuga menzicsii. West of the Cascades we find many Douglas-firs and other evergreen trees such as wester red-cedar and western hemlock. Other trees common west of the Cascaded loose their leaves and are called cediduous trees. Among them are Oregon white oak (garry oak), red alder, and big-leaf maple. Walk in the uplands around the Center to see Douglas-fir, pacific dogwood and valley ponderosa pine, but take the wetland trails to view the more water-tolerant Oregon ash and black cottonwood. Trees, shrubs and other plants that have similar water and sun requirements often grow in the same area and are called "plant associates." Snowberry and ninebark, two native shrubs, commonly grow alongside Oregon ash and can also be found in the lowlands. Trees have a single trunk whereas shrubs have multiple stems coming out of the ground. Trees are usually taller than shrubs, but both are woody. The plants and animals living together along the river corridor form a special "riparian community."

In the past, Native Americans such as the Atfalati (Tualatin Indians) used trees for many purposes and today we rely on them for shade, lumber, erosion control, and much more. Even dead trees, either as standing snags or fallen logs, are great habitat for animals. How are trees important to you? How old are your big salvaged logs in the gardens? Count the growth rings to find out. Are they older than your grandparents?

Nature Facts:
* Two mature trees provide enough oxygen for a family of four (about 520 pounds of oxygen each year).
*Western red-cedar (Thuja plicata) grows slowly, but can live for 800-1000 years. Look for a series of small butterfly patterns on the back of their scale-like leaves.
*A notch or scar on a tree trunk will remain the same distance from the groung as the tree ages because trees grow at their tops.
*One acre of trees removes about 2.5 tons of carbon dioxide from the air each year, reducing "the greenhouse effect.""

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Other highlights of the Arboretum:

Sensory Trail (Plants that hae special traits such as colors, flavors, textures, and scents that attract animals and people).

Reptile Garden

Pollinator Garden

Arboretum address: Jackson Bottom Arboretum and Nature Preserve 2600 SW Hillsboro Hwy. Hillsboro, OR United States 97123 Arboretum web site: [Web Link]

Visit Instructions:
A waymark may not be logged as visited, until the finder makes a trip to it.

To log this waymark, you must be able to prove to the waymark owner that you were at the arboretum in question.

Post a photo of an identifiably part of the Arboretum, having your GPS in the photo would be a good idea. In addition, but optional, you may include a a photo and latitude/longitude coordinates of a favorite tree/shrub specimen.

Recent Visits/Logs:

Date Logged Log   07/18/2019 charlietd visited it 08/28/2015 SpockProf visited it 09/15/2012 ornith visited it 07/20/2011 Queens Blessing visited it

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