rock garden, n.All

The Rock garden (n.) shows ⁠​‌​​​‌​​​‌​‌‌​​​​‌​‌​​‌‌​‌​​‌​​​​​‌‌​​‌​​​‌‌​‌‌​⁠the hand of man may never touch the stones — and still not any old stone will do.