Plant a monk in spring and harvest a bunch of monks in autumn. Why Siraitia grosvenorii?

But it describes the characteristics of Siraitia grosvenorii. By self-budding and self-bearing, that is to say, planting a monk in spring and harvesting a bunch of monks in autumn can not only reflect the excellent characteristics of Siraitia grosvenorii, but also satirize the benevolence and righteousness of gentlemen. This joke comes from the third volume of "Three Hundred Poems of Tang Dynasty", including that silkworms in spring are spinning until they die, and candles will drain the wick every night.