rain that scatters cherry blossoms
A poetic seasonal phrase referring to rain that causes cherry blossom petals to fall, often used in spring contexts.
The petal-scattering rain fell, and cherry blossom petals were scattered everywhere.
Compound of 花 (flower, especially cherry blossoms), 散らし (scattering, from 散らす), and 雨 (rain). The phrase is a seasonal expression for spring rain that causes petals to fall.