A support comprises an elongate support member 24, a first securing member 30 for securing the support member 24 to a first upright 16a, and a second securing member 30 for securing the support member 24 to a second upright 16b, the first and second securing members each taking the form of a V-clip secured to the respective upright 16a, 16b. The V-clip may be made from resiliently deformable material including first and second limbs which may be inclined to the upright when the clip is in a relaxed condition, resilient deformation of the clip brings the limbs closer together reducing angling to the upright, reducing the resistance to movement and allowing the support to be moved relative to the upright. The ends of the support may be bent into a U-shape or form loops through which wire or tape to support leaves/fruit may extend. The support may be used for supporting plants grown in an elongate gutter, particularly in a poly-tunnel