For questions about trees and plants in Hoyt Arboretum:

Please contact Dan Moeller, Curator, at dmoeller@ci.portland.or.us or call 503.823.4474

For questions about plants in your yard or garden:

~ Clackamas County Master Gardeners        503.655.8631

~ Washington County Master Gardeners      503.725.2300

~ Plant Answer Line 
    Elizabeth G. Miller Library 
    University of Washington                           1.206.897.5268 

~ Call a certified arborist 

For questions about city trees:

~ Urban Forestry                                           503.823.4489

For questions about recycling or donating plants:

~ Recycled Gardens                                       503.626.4070  X3

For questions about memorial trees:

~ Friends of Trees                                         503.282.8846

Hoyt Arboretum does not have a memorial tree program and cannot accept plant donations.                               

 ~ Click here for links to other tree, plant and biodiversity preservation organizations