"The calla lilies are in bloom again."

When I posted my photo of calla lilies in #Bloomscrolling I used this quote, but I had never seen the movie it is from, and don't know why it's famous, but the phrase is stuck in my head and I say it whenever I see calla lilies.

Katharine Hepburn as Terry Randall in Stage Door 1937
#OldHollywood