What best to tree to put into a planter

Concord, CA

I am a volunteer on the Red Oak Victory museum ship in Richmond, CA and would like to put stree planters on the pier next to the gangway of the ship. I would like the trees to grow to around 15 to 20 feet tall. They would have to be easy to take care of and tolerated to wind and SF Bay weather. Any suggestions?

Northumberland, United Kingdom(Zone 9a)

Any preference for evergreen or deciduous?

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