sideshoot noun 1verb 1forms 3 noun1 •A branch or offshoot on the side of a plant's stem.[…] when their stems are hard and ripe, heel A small strip of bark torn from the main stem when a sideshoot is pulled off to make a (heel) cutting. — 2002 verb1 •To prune sideshoots from a plant.Tall varieties need to be sideshooted and ‘stopped’ in midsummer. They will produce anything from three to six trusses depending on the area. In dry weather they will need heavy watering (see above). — 1984 formssideshooted · sideshooting · sideshoots