What is the solar term for sending peony?

It's upstairs. Peony flowers bloom in April of the lunar calendar. As for "Qin Yan", why did he "give a spoonful of medicine" on March 3?

This is because "peony" here refers to peony, also known as "Xinyi" and "Gracilaria", which is a kind of vanilla, while the peony with flowers like peony we are talking about now refers to wood peony, which is two plants with the same name and different species, and the mature seasons are naturally different.

In a word, Qin Yanli presents a kind of herbal medicine called Paeonia lactiflora, also known as Gracilaria. Lovers give this grass to each other when they "leave", pinning their feelings of leaving soon. In addition, in ancient times, the sound of "peony" was used by lovers to express their love, just like "invitation", hoping to make an appointment again.