Three-Cornered Garlic

Allium triquetrum
Family: Alliaceae

Growth Habit: Three cornered garlic has an average height of 30 to 50cm.

Type of Plant: A bulbous perennial.

Flowers: White, star shaped with five petals, often nodding. Flowering occurs through spring.

Fruit/Seed: Oblong and black.

Dispersal: It reproduces by seed or vegetatively.

Distribution: Found along roadsides, wasteplaces and highly cultivated areas in south-east Australia.

Status: Secondary weed in Tasmania.

Weed Impact:

  • Can taint milk and meat however stock tend to avoid it due to its onion-like flavour.
  • Capable of forming dense colonies on grassland areas.

For further information contact the Department of Primary Industry, Water and Environment, Tasmania.

Control Methods:

  • Grubbing. Remove manually and ensure all bulbs are removed otherwise the plant will reshoot.
  • Herbicide. Spot spray. Herbicides registered in Tasmania include dicamba, MCPA, metsulfuron and glyphosate.

N.B. Always check the herbicide label before use.