Weeds

Ageratum houstonianum - Blue Billy Goat Weed is a blue mauve flowered plant which can grow to around 0.8m high. In some areas it is cultivated as a garden plant but generally can become a weed which spreads throughout the garden. Control: Check for any organic control ...

Alternanthera pungens - Khaki Weed is a prostrate creeping perennial weed which spreads both by seed and vegetatively and has a fleshy taproot. Control: Check for any organic control methods first which could include removal by hand especially before seeding and cover ...

Arctotheca calendula - Capeweed is a perennial weed which grows in rosettes which spreads by stolons very quickly. The leaves are hairy and the yellow daisy like flowers are produced on top of hairy stems. It reproduces both vegetatively and by seed and can be very inva...

Asclepias physocarpa - Balloon Cotton Bush is a perennial herb which can grow to 1.5m tall. It is often seen on roadsides and paddocks throughout the countryside. It has white flowers and large inflated capsules with rough hairs and a milky sap. Control: Check for any ...

Asparagus africanus - Climbing Asparagus Fern is a climbing weed which can easily escape into bushland and smother native vegetation. It has narrow leaves and a prickly stem with small white flowers and green berries which turn to red. Asparagus africanus has a vigorou...

Avena sativa - Wild Oats is a cereal grain crop which is suitable for human consumption but is grown for livestock feed. Oatmeal is used in breakfast cereals such as porridge. It can escape the fields and become a weed on the roadsides and in gardens nearby. Control: C...

Axonopus compressus - Broadleaf Carpet Grass is a coarse textured, light green shallow rooted perennial which has broad leaves and forms a dense mat. It can become a troublesome weed growing into garden beds and overtaking other turf and lawn species. It is not prone t...

Baccharis halimifolia - Groundsel is a declared class 2 weed which rapidly takes over pastures and bushland. Groundsel grows to about 2.5m tall with dull green alternat wedge shaped leaves. It has a cream coloured flower which develops into a white fluffy seed which is ...

Bidens pilosa - Cobblers Pegs is a weed which colonizes garden beds and grows to around0.8m tall. The leaves are opposite and pinnately divided with toothed margins. The flowers are white and yellow on long stalks, while the seeds are black and barbed which is how they ...

Brachiaria decumbens - Signal Grass is a low growing erect perennial grass with bright green hairy lanceolate leaves. It has growth through both rhizomes and stolons. It is usually grown as a pasture but can escape to colonise bare areas and become a weed. Control: Che...