How to kill capeweed

Access all the information needed for control of this noxious weed, including weed identification, herbicide application and spray timings.

Capeweed Description

Capeweed Identification

Capeweed is a low growing, semi upright plant, which means that the stems of the plant don’t grow straight up in the air, they grow out at an angle to the ground to form a rosette. This growth continues until the plant starts to mature and produce flowers, which tend to grow more vertically and can reach up to 30 cm in height.

Capeweed leaves are elongated in shape ranging from 5-25 cm long and 2–6 cm wide, with each leaf broken up into tooth shaped sections that run from the base of the stem to the tip. The leaves themselves can be slightly hairy on the upper surface, with a white felt-like underside.

The flowers are usually around 2–6 cm across with dark purple centres and numerous yellow petals.

Capeweed Control

How to kill capeweed

Different application methods can be used to treat capeweed depending on the size of the infestation. Small infestations can be physically removed or treated with Vigilant™ II Herbicide by applying to 50% of the leaves of the plant.

For more extensive infestations, use Grazon™ Extra Herbicide as a foliar spray at 1.5mL/1L of water. Over larger areas Statesman 720 Herbicide as a boom spray application can be used at 1.475/2.4L of water per hectare.

Herbicides for killing capeweed

Method of application Rate* State
Grazon™ Extra Herbicide
Foliar spray 150 mL/100 L of water All
Statesman™ 720 Boom Application 1.475 to 2.4 L/ha ACT, NSW, NT, Old, SA, Tas
Vigilant™ II Herbicide Leafwiping Neat 50% leaf area All

# Note: Preferred product option in bold. * Consult label for details of growth stage and use, especially where range of rates is given.

Treatment Timing

Timing to kill capeweed

The best way to minimize the impact of capweed is to treat new infestations early before the plants reach the flowering stage.

PRODUCT Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug
Grazon Extra
Statesman 720
Vigilant II
Best time to spray/treat
Can spray/treat
if conditions are suitable
Do not spray/treat