withering of the grass; autumn
A poetic or literary term for the season when grasses wither, often used in haiku and traditional Japanese poetry to evoke late autumn.
草枯れの野を一人歩く。
I walk alone through the fields of withered grass.
俳句
In haiku, 'kusagare' is sometimes used as a winter season word.
Compound of 草 (kusa, 'grass') and 枯れ (kare, 'withering'), from the verb 枯れる (kareru). The reading くさがれ is a standard rendaku form.