It is this beautiful woodland native plant, Oregon Grape, Mahonia aquifolium, that can be found growing along Terwilliger Parkway and throughout most of the city. Oregon designated the Oregon grape blossom as the official state flower in 1899. The following description of this remarkable plant has been adapted from the Portland Nursery website (http://portlandnursery.com/plants/natives/mahonia.shtml).
Have you ever noticed the need for street repairs or clean-up as you run, walk or bike in Terwilliger Parkway; or anywhere in the city for that matter? PDX Reporter provides this easy connection with our city departments and employees.
Friends of Terwilliger volunteers have spent thousands of hours over the past 23 years removing invasive vegetation in Terwilliger Parkway.Perhaps chief among the bad-news invasives is English or Irish ivy.We all know what it looks like and that it is Bad—but what is it, really?
English Ivy (Hedera Helix) was brought to Oregon in the mid-1800’s as a way to remind early settlers of home. What started out as an innocent plan has come to represent one of the toughest problems Portland’s natural areas face today. It now invades more and more of our parks and will ultimately destroy our cherished tree canopy unless we remove it now. By allowing ivy to grow unchecked it will climb trees where it will mature, produce seeds, and continue the “seeds of destruction” by being transported by non-native birds.