When I lived in North Portland I had what I would consider good luck growing flavor queen and flavor supreme, on the same tree. The 2nd year after planting it gave us fruit but not very much, but the 3rd year it was loaded. We then moved to rule Clackamas county and I have had some luck with a variety that I do not know the name of until the pollinator died. Be patient you will not get a crop every year but I think they are worth your trouble. Joe

The pluot tree that I had in north Portland was in a back yard with other trees and shrubs around, it was not next to a house or wall. The plout that I have here that beard fruit for 3 consecutive years until the pollinator died, is out in the open and so are the new ones that I planted last year. It is very important to have bees or mason bees to cross pollinate your pluots. I have noticed that if the fruit is set and getting some size to them that (light) frost does not seem to kill them. My orchard here is between 6 & 8 hundred feet in elevation and has good air drainage. You should not expect to get fruit every year but you should be able to get fruit 2 out of 4 years. Also beware other creatures like the fruit too.