The ninth 節気 “sekki” division of the traditional Japanese calendar is:
‘grain beards and seeds’ // ‘grain in ear’ (solar term)
The third and final “kō” microseason within this division is:
(うめ の み きばむ)
“ume no mi kibamu”
Plums turn yellow
That makes 梅子黄 the twenty-seventh microseason of the year!
It typically lasts 16~20 June.
Image credit: The Express.