Grain Rain — Born Hour
Grain Rain closes the spring sequence: rain for grain, earth fully engaged before summer fire.
Overview
Gu Yu (谷雨) is the Zhong Qi of Chen month at 30°. Agrarian calendars treat it as the last generous rain of spring sowing weather.
Pentads: 萍始生、鸣鸠拂其羽、戴胜降于桑. Peach blossom festivals and tea picking (谷雨茶) peak in many provinces.
Structure: deep wet earth inside a wood-strong month — a bridge toward Si month fire at Li Xia. No month-branch switch.
Reading tip: 'spring' as a slogan does not make wood strong; month command, roots and moisture still decide.
Phenology (three pentads)
Three pentads: duckweed; doves preen; hoopoes on mulberry.
Classical citation
Classical: rain nourishes the hundred grains in the third month.
Month command contrast
Month command: Chen mid-point; last spring rain before summer fire.
Related entries
How to read it on a chart
Find Grain Rain in the almanac or chart engine output for your birth year and compare the instant with true solar time.
Jie nodes can move the Month Pillar; Zhong Qi deepen the same month without switching branch.
Limits
Grain Rain is a calendrical node and cultural festival, not a weather guarantee or personal luck verdict.