This Imperial Garden was built by the Emperor for his concubines to play in. There were 3000 concubines and they were aged from about 14 years.
There were no trees inside the main part of the Forbidden City because the Emperor was frightened that someone may hide behind a tree to kill him. He only walked through this garden once, heavily guarded by his soldiers. Even though we saw it at its barest in winter you could still see its beauty.