柳は緑、花は紅（やなぎはみどり、はなはくれない）

Japanese vocabulary

Meaning: natural state; being unspoilt by human touch; willows are green, flowers are crimson; spring is beautiful; things are different by nature

See it used in real works

• Example sentences from Japanese novels & web fiction (Massif)
• Hear “柳は緑、花は紅” pronounced in real videos (YouGlish)