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Miracle fruit works well for me. Also dragonfruit, mandarin, kumquat, lemon(lime), blueberry, strawberry(berries in general), sapodilla, How big of a container are we talking about? Some people grow banana in containers. Dr. John Yonemoto grows mangos in 200 gallon "containers" in greenhouses in Japan.
It's got to be strawberries!
Feijoa, give a try. You wont regret!