Abstract: The plant protector is designed to form a sleeve of triangular cross-section from a flat sheet 10 having a width of 285 mm by way of example. The sleeve is attached to a horizontal support wire 11 by folding a top securing flap 12 past and around the wire 11. The sheet 10 can be of various lengths to form erected sleeves of different heights to suit different applications. By way of example the erected sleeve can be of a number of different heights within a range of about 300 mm to about 1600 mm.Sleeve 13, has spaced sealing tabs 14 along each of the longitudinal edges. The lower end 15 may be engaged with the ground while the upper end has a horizontal crease line 16 for the securing flap 12. The tabs 14 along the two longitudinal edges are mutually offset so that the tabs 14 along each edge align with the inter-tab spaces 15 along the opposite edge so that a dove-tail closing action is achieved.