A support stake for gardening, comprising: a metal tube (1)； and a plastic layer (2) coated on an outer wall of the metal tube (1). A first end portion (11) and a second end portion (12) of the metal tube (1) are respectively provided with a female connector (13) and a male connector (14). The female connector (13) comprises a first connection portion (120) in a hollow cylindrical shape and an engagement sleeve (16), wherein the first connection portion (120) is coaxial with the metal tube (1) and has an internal thread provided on an inner wall thereof, and the engagement sleeve (16) is fixedly connected to the first connection portion (120). The male connector (14) comprises a second connection portion in a cylindrical shape and an engagement connector (15), wherein the second connection portion is coaxial with the metal tube (1) and has an external thread (141) provided on an outer wall thereof and matching the internal thread, and the engagement connector (15) is located at a tail end of the external thread (141) and fixedly connected to the second connection portion. The engagement connector (15) of one support stake can fit inside the engagement sleeve (16) of another support stake and forms an interference fit with the engagement sleeve (16). In this way, the interference fit between the engagement connector (15) and the engagement sleeve (16) enables a stronger connection between the support stakes, preventing the support stakes from becoming unstable and enhancing structural strength.La présente invention concerne un tuteur de support pour jardinage, comprenant : un tube métallique (1) ； et une couche de plastique (2) revêtue sur une paroi externe du tube métallique (1). Une première partie d'extrémité (11) et une seconde partie d'extrémité (12) du tube métallique (1) sont respectivement dotées d'un connecteur femelle (13) et d'un connecteur mâle (14). Le connecteur femelle (13) comprend une première partie de connexion (120) de forme cylindrique creuse et
