A palm in a pot is a mark of elegance.
4 seconds sound clip from the Little Women (1950) classic radio play.
You can hear this line at 00:21:56 in the radio play.
Quote context
[...]
- Just tell Jo not to stride about and swear. She'll disgrace us.
- Come on, my dears! Let's be elegant or die!
- I'm glad we found this spot. Nobody can see us behind all these potted palms.
- A palm in a pot is a mark of elegance.
- Oh, yes. She's still dancing with Laurie's friend.
- You know, my dear Beth, I do believe our Meg is stricken.
- Dancing makes anybody dizzy.
- Just look! Just look at that piano over there. Oh, isn't it perfectly absolute?
- Why, it's bigger than our kitchen.
[...]