Choose compact flowering selections and a container citrus only if the balcony has room and useful sun. Keep all pots stable and within structural and building rules. The citrus is a longer term growing project; seasonal flowers may be replaced when their natural display ends.
The message behind the grouping
Meaning, with a little thought.
Warm flowers and a little citrus canopy can express celebration and seasonal good wishes. Their presence does not predict good fortune or a harvest.