Common burdock is a tenacious biennial weed that reproduces from seed.
It is the seed that makes this weed such a pest.
The plant’s burrs are two to three millimetres with barbed bristles that stick to nearly any hair or fibre. Animals can become heavily burdened by these seeds.
The weed is heavily branched up to two metres tall.
Killing the mature plant usually requires tillage or a Group 4 herbicide.
Chemical control is best done when the plant is in its first year and still in the rosette stage.
The weed is formally known as arctium minus.
