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to wither (of flowers, dreams, etc.); to wilt; to droop; to shrivel; to fade (away); to sag; to deflate
花瓶の花が数日で凋んでしまったので悲しい。
I'm sad that the flowers in the vase wilted in a few days.
水をやり忘れて庭の花が凋んだ。
The flowers in the garden wilted because I forgot to water them.
花瓶のバラが一週間経って凋んでいる。
The roses in the vase are withering after a week.