When does Sophora japonica bloom?

Sophora japonica usually blooms in April-May.

Sophora japonica is sweet and fragrant, rich in vitamins and minerals, and has the functions of clearing away heat and toxic materials, cooling blood and moistening lung, lowering blood pressure and preventing stroke.

Sophora japonica has been regarded as "the essential medicine for cooling blood" by doctors of past dynasties. It is bitter and cool, non-toxic and belongs to the liver and intestines. Has the functions of clearing away heat, purging fire, cooling blood and stopping bleeding. Indications are intestinal wind, bloody stool, hemorrhoid, bloody dysentery, hematuria, bloody stranguria, metrorrhagia, hematemesis, epistaxis, headache due to liver fire, red eyes and sore throat, aphonia and carbuncle.

From the perspective of western medicine, Sophora japonica contains rutin, quercetin, tannin, sophoridiol, vitamin A and other substances.