a withered tree blooms again ❍ 更胜如枯树花开，捱了些脓血债，受彻了牢狱灾，今日个苦尽甘来。(《关汉卿戏剧集·包待制三勘蝴蝶梦》81) Like a withered tree which blooms again,after beating and imprisonment our sadness has turned to joy.
枯树生花kū shù shēnɡ huā
比喻重新获得生机。A dried up tree comes to life again. A withered tree blooms again.