Obon flower market; plant fair for offerings
A seasonal market held around the Obon festival, selling flowers and plants used as offerings for ancestors.
I bought flowers at the Obon flower market before the festival.
The plant fair is held every year in July.
Compound of 草 (kusa, 'grass, plant') and 市 (ichi, 'market'). The reading くさいち is a straightforward combination of the two elements.