What are the four-word quatrains describing Arbor Day?

What are the four-word quatrains describing Arbor Day?

Buy flowers with money and plant them on the east slope of the city.

But buying flowers is not limited to peaches, apricots and plums.

Two Children at the East Foot —— Li Bai in Tang Dynasty

There is a peach tree in the east of the building, and its branches are covered with smoke.

This peach tree was planted when I left. It has been three years.