off-season flowering
Refers to flowers blooming out of their normal season, often due to unusual weather or stress. Compare 狂い咲き, which is more common.
See also: 狂い咲き
暖冬の影響で、庭の桜に狂い花が見られた。
Due to the warm winter, off-season blossoms were seen on the cherry tree in the garden.
Compound of 狂い (kurui, 'deviation, madness') and 花 (hana, 'flower'), literally 'mad flower'. The exact origin is uncertain, but it likely arose as a descriptive term for anomalous flowering.