Hoyt Arboretum is located in Portland, OR.

Hoyt Arboretum is Portland's free botanical garden, conservation lab, nature education hub, and tree museum in Washington Park.

ArbNet Accredited Arboretum – Level IV... Read more >

The International Rose Test Garden is a rose garden in Washington Park in Portland, Oregon. There are over 10,000 rose bushes of approximately 650 varieties. The roses bloom from April through October with the peak coming in June, dependin... Read more >

Leach Botanical Gardens is located in Portland, OR.

Leach Botanical Garden, located in SE Portland, Oregon.

ArbNet Accredited Arboretum – Level I... Read more >

Oregon State University Campus Arboretum (Osuca) is located in Corvallis, OR.

ArbNet Accredited Arboretum – Level II... Read more >

The Portland Japanese Garden is a traditional Japanese garden occupying 12 acres, located within Washington Park in Portland, Oregon. The Portland Japanese Garden is composed of eight garden spaces and a Cultural Village. It is operated as... Read more >