Abstract: A pruning machine, for pruning or trimming a row of vines or other plants, includes first and second sets of pruning apparatus. The first set includes a first mounting plate having a central axis and an outer edge, a first set of blades mounted on the first mounting plate and protruding outwardly from the outer edge, a second mounting plate having a central axis and an outer edge located close to the first mounting plate so that the respective central axes and outer edges substantially coincide, and a second set of blades mounted on the second mounting plate and protruding outwardly from the second mounting plate outer edge. In operation, the first set of blades rotates relative to the second set of blades so that scissor like cutting actions are formed between them. The blades on the first mounting plate and/or the blades on the second mounting plate taper from a broader width at the outer edge of the respective mounting plate to a narrower width at the point furthest from the central axis.