PURPOSE: To fix a tree and a flower onto the construction work surface of a sharp slope for the greening thereof.

CONSTITUTION: A slope greening method with the concurrent use of a mud stopper, uses a mud stopper 1 and a vegetation bag 4A housing soil 4B suitable for a vegetable. Furthermore, the stopper 1 has such a through-passage as allowing the passage of the root 7 of a planted vegetable 6. In addition, the vegetation bag 4A has such a structure as allowing the easy passage of the root 7 of the vegetable 6.