"Visiting a Private Garden Without Success," Yeh Shao-Weng
(translated by Red Pine)

It must be because he hates clogs on his moss
I knocked ten times still his gate stayed closed
but spring can't be kept locked in a garden
a branch of red blossoms reached past the wall

From Poems of the Masters, a classic anthology of poems from the Tang and Sung dynasties that is to Chinese students what, oh, "Stopping By Woods on a Snowy Evening" is here in the States. Only bigger. I've taken note of Pine before, about three months ago...