Greening seedling supporting and limiting device

The utility model relates to the technical field of greening nursery stock supporting devices, and discloses a greening nursery stock supporting and limiting device which comprises a supporting ring, the supporting ring comprises four branch rings, one end of each branch ring is fixedly connected with a fixing block, the inner surface of each fixing block is movably connected with a connecting shaft, the other end of each branch ring is movably connected with a connecting block, and each branch ring is fixedly connected with the corresponding connecting shaft. The outer surface of the connecting block is fixedly connected with a connecting plate, the outer surface of the branch ring is fixedly connected with a clamping plate, and the middle of the clamping plate is fixedly connected with a clamping rod. By arranging the connecting plates, the connecting blocks, the clamping plates, the clamping blocks and the limiting blocks, the fixing angles of the four parts of the supporting ring can be adjusted when a se