A plant support arrangement comprises two or more adjacent plant-supporting poles (16, figure 4) carrying respective removable supporting bosses 5, the bosses being held apart by an elongate link 2 connected between them. The bosses and links may comprise connector portions 7, 10 for connecting them together. The, or each elongate link may comprise at least one linking member. There may be at least two linking members which may be mutually connectable with an adjustable overlap. The linking members may each be provided with a linear array of alternating projections 12 and recesses 11 to enable the linking members to be mutually engaged. The poles may be supported upright by bases. In one embodiments the poles may project from a grow-bag. A kit of parts for a plant support arrangement is also disclosed
