+100 for the WSU publications. WSU has an invaluable Mt. Vernon grow site publication for fruit tree growing in the Puget sound. I have learned through a lot of trial and error with growing fruit trees in our climate. I grew up in Central Washington with orchards everywhere and thought I could grow the same wonderful fruit trees here. Not so. The climate here reeks havoc on dry climate trees. My wife loves goldens, but they are prone to serious disease problems here from all the moisture. I was able to find the Chehalis apple. It is the wonderful western Washington golden delicious equivalent through the WSU publication. Every tree in my orchard that was the ranked highest by WSU has done well with the exception of the Puget gold apricot. I chose one Jonagold that was ranked worth trying, but warned it could develop problems has struggled. Two losses out of 27 trees aint bad. I go organic as possible with little disease issues. Planter boxes are OK for dwarf and sentinal varietes. Check out those publications. http://extension.wsu.edu/maritimefruit/Pages/default.aspx
Good luck