noun
under a plum tree
Literary or idiomatic use, almost always in the proverb 李下に冠を正さず (Avoid actions that invite suspicion; literally, 'Do not adjust your hat under a plum tree'). Rarely used independently.
「李下に冠を正さず」ということわざを知っていますか。
Do you know the proverb 'Do not adjust your hat under a plum tree'?