Growing Trees in Containers

Question

I need to plant 5 pots all in a row to develop a hedge-like feel at the end of our deck so as to have some privacy from the neighbor’s deck. The pots are knee high and about 20 inches across. I would like something that would live through the winters here in Seattle, WA. It rarely gets below 32 degrees, and rarely gets that low, but it has been known to have really cold spells. What tree or shrub would work and be hardy for year-round?

Answer 1

These articles will help: https://www.gardeningknowhow.com/ornamental/trees/tgen/growing-trees-in-containers.htm
https://www.gardeningknowhow.com/special/containers/how-to-grow-container-trees.htm
https://www.gardeningknowhow.com/special/spaces/plant-a-privacy-screen-plants-that-grow-fast-for-privacy.htm