Hoyt Arboretum is a free, public park and is open from 5am to 10pm daily.
The Visitor Center is open 10am to 4pm daily with exceptions. 503.865.8733
As of April, 2023 the Explore Washington Park Free Shuttle has resumed summer hours and runs from 9:30am – 7:00pm.
Arborists in the Arboretum
Saturday, September 9, 2023, more than 100 volunteer arborists from all over the Portland area will working on and maintaining our global tree collection at our 36th annual Arborists in the Arboretum event. If you are planning on visiting on this day, be aware that the sounds of chainsaws will be in the air, parking will be very limited in the park, and there will be trail closures in areas where work is being performed.
4T/Marquam Tail Closure at US-26
An active landslide at the south side of Highway 26 has closed the 4T/Marquam Trail to through traffic. Out and back traffic is passable from Patton but through traffic to Washington Park and Hoyt Arboretum is closed due to the extreme and ongoing hazard of this area. Connections from Hoyt Arboretum and Washington Park to Council Crest and Marquam Park are also closed due to the slide activity. The trail is impassable near the trail entrance from the highway overpass and the area is unstable. For your safety, please respect the trail closure.
The Washington Park South Entry Project just off of Hwy 26 adjacent to the Oregon Zoo will began 2023 and is anticipated to continue until Spring of 2024. During this time visitors to Washington Park should expect changing traffic patterns, short delays, and an excellent experience in Washington Park as always. Please pardon our dust as we put your pay to park fees to work. Guests will still be able to enjoy the Oregon Zoo, World Forestry Center, Hoyt Arboretum, Portland Japanese Garden, International Rose Test Garden, and all the other destinations within.
Current information for Hoyt Arboretum can be found at Plan Your Visit.