Hi David,

I normally work with native trees and refer folks to the below linked native tree seedling sources document. I am unsure of sources for Burr Oak in our area and am unfortunately unable to recommend specific vendors. Let me ask around and see if anyone has any ideas.

https://www.oregon.gov/odf/documents/workingforests/seedling-catalog.pdf

I have two ideas:

1. Friends of Trees plants Burr Oak in some areas. Contact your local Friends of Trees office to see if they have any seedlings or know where to acquire them.

https://friendsoftrees.org/browse-trees/

2. You could locate a planted Burr Oak, collect acorns, and sprout them into seedlings. Oaks root quite easily from acorns (look for ones without holes in them signifying larvae inside). A quick search shows that there are a couple known planted Burr Oak in Portland and one on OSU campus in Corvallis. See info on their locations at these links:

https://www.inaturalist.org/observations?place_id=10&subview=map&taxon_id=54781

https://landscapeplants.oregonstate.edu/plants/quercus-macrocarpa