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You are here: Weeds

Weeds

This section is an A-Z guide of common Australian garden weeds.

Asthma Weed or Pellitory of the Wall Perennial herb, which is very sticky to touch, and covered with very fine hairs on the leaves and reddish/crimson stems. Flowers are green-white and very sticky.
Can cause serious allergic reactions in some people e.g. Asthma, rhinitis and conjunctivitis.
It is declared a noxious weed in Sydney.
Wear full protective clothing, gloves, facemask to remove, by either hand weed, or suitable herbicide, following manufacturers safety directions.

Bachelors Buttons

Annual herb, with fine deeply divided leaflets. Flowers are white or pale green yellow with rounded heads, and petals similar to a daisy. Flowers all year if conditions are favourable.
Found predominantly in lawns, and paved areas.

Balloon Vine

Evergreen tendril climber, with lobed green leaves; small white flowers and the fruits are numerous and look like pale green yellow inflated balloons, with black seeds in the centre. Are able to float on water, wind and gravity.
Pick balloons and place into plastic bag. Cut the stems of the climbers.
Predominantly found in bush land and gardens.

Bindii

Finely divided leaves, forming a rosette. Flowers are green, which form into burrs with short spines. Found predominantly in lawns, it can be removed by using Yates Weed n Feed, or, Bindii & Clover Killer. Following the directions on the bottle; or if in small amounts removing by hand.

Blackberry

Aggressive, very prickly trailing shrub. Leaves are in 3 leaflets with rough edges and whitish undersides. Fruits are edible, red to black and fleshy. It takes root at the nodes on the branches, and has spines along its stems.
Found predominantly in bush land, and gardens.
To remove blackberry use, Zero 360 Weedspray Concentrate. Following the directions on the bottle.

Blackberry Nightshade

Annual herb, with dark green diamond shaped leaves. Flowers are star like, white followed by red black berries. Appears mainly in summer through to autumn. The berries are poisonous.
To remove either hand pull or spray with Yates Broadleaf Weed Killer. Following the directions on the bottle.

Burr Medic

Annual herb, prostrate, with thin trailing stems, and 3 leaflets. Flowers are small and yellow, producing round, coiled spiny fruits. Appearing in spring through to summer.
Found predominantly in garden beds and lawns.
To remove hand weed.

Canadian Fleabane

Tall annual plant, with linear dark green leaves, slightly hairy. Flowers are in clusters of white cream hair like.
Spread by wind, water and attach themselves to clothing. Very long tough taproots.
To remove hand pull, and cut and bag flower heads.

Capeweed

Prostrate herbaceous rosette plants with grey green lobed leaves, with hairy undersides. Flowers are daisy like with yellow petals and with purple centres. Strong, fibrous roots. Seeds are small, fairly inconspicuous in woolly balls.
Found predominantly in lawns.
To remove hand pull, or spray with Bindii & Clover Killer. Following the directions on the bottle.

Cats Ear

Annual herb, with leaves in rosettes at the base. Leaves are hairy and deeply lobed, or bluntly toothed. Flowers are on narrow stalks, maybe branched. Flowers are yellow daisy like.
Found predominantly in lawns.
Hand remove.

Chickweed

Annual, low growing, prostrate herbaceous weed. Leaves are round light green and hairy. Flowers are small, white, appearing at the top of the stems.
Found predominately in garden beds, and lawns.
Hand remove.

Chickweed Mouse-Eared

Annual, low growing herb. Leaves are similar to mouse ears, with tapered rounded ends, and sticky, covered with hairs. Flowers are white and in clusters.
Found predominantly in garden beds, lawns.
Hand remove

Clover

Perennial, prostrate herbaceous weed with lobed, mid green leaves. Flowers are in white green balls. Attracting bees.
Spray with Yates Weed n Feed. Following the directions on the bottle.

Cobblers Pegs

Evergreen erect weed. Angular stems, with 3 leaflets, with slightly serrate edges. Flowers are small, yellow, elongated, in groups at the top of the plant, in late autumn to summer.
Found predominately in gardens and vegetable gardens.
Remove seeds and flowers, without disturbance.

Couch

Prostrate grass. Spread by rhizome and stolon. Leaves are linear, mid green. Flowers appear on long stem and have 3 ? 7 spikes green to purple in colour. Spread by rhizome and stolon, and by seed.
Remove by spraying with ,Zero 360 Weedspray Concentrate. Following the directions on the bottle, and follow up by heavily mulching the ground.

Creeping Buttercup

Creeping. Spread by stolons or runners. Leaves are bright green and lobed. Flowers are yellow and solitary.
Found predominantly in garden beds, lawns. Prefer damp conditions.
To remove dig out, or spray when actively growing with Lawn Weeder. Following the directions on the bottle.

Cudweed

Perennial herb, with basal rosette leaves, with grey green lance shaped leaves. Flowers are on spikes, but petals are fairly inconspicuous.
Predominantly found in lawns.
Hand remove.
Crofton Weed

Tall, herbaceous perennial weed. Leaves are triangular, dark green and red tinge in the stalks. Flowers are white in clusters at the end of the stalk.
Found predominantly in garden beds, and bush land.
Spread by seed and if a piece touches the ground it reshoots. Poisonous to horses.

Crowsfoot Grass

Tall grass, with shiny green linear leaves. Tough, fibrous root system. Flowers are thick, in 5 ?8 spikes, held on one side of the spike.
Found predominantly in lawns, garden beds and vegetable beds. Spread by wind.
Spray with, Zero 360 Weedspray Concentrate. Following the directions on the packaging or container.

Curled Dock

Erect, tall weed. With leaves forming a rosette at the base, with erect branches with lance shape green leaves on the stems, wavy edges. Flowers are reddish brown in long clusters held above the leaves.
Found predominantly in garden beds, vegetable gardens. Spread by wind.
Prevent by cutting off the flower heads and bagging them. Dig out the taproot, thoroughly, as it regenerates from any piece left in the soil.
Spray when actively growing with Yates Broadleaf Weed Killer in lawns. Following the directions on the bottle.
It is considered a noxious weed in Tasmania and Western Australia.

Dandelion

Perennial herb, with leaves in a rosette at the base. Leaves are long and deeply divided, mid to dark green. Flowers are on long stalks and are bright yellow in colour.
Found predominantly in grass, paved areas, and vegetable beds.
Reshoots from the roots, so thoroughly remove taproot. And spreads from the fruit, which are, like parachutes of tiny hairs.
Spray with Yates Weed n Feed, or, Yates Broadleaf Weed Killer in lawns. Following the directions on the bottle.

Ehrharta or Panic Veldtgrass

Tufted grass to 60cmm. Found in sunny and shade areas with adequate moisture. Long mid green yellow linear leaves. Flowers are on drooping spikes from spring through to summer.
Hand remove if in small amounts.

Fat Hen

Tall, erect annual herb, with angular stems. Leaves are lance shaped, wedge to oval shaped, with slightly toothed edges. Flowers are white to green in clusters. Fruits are shiny black spheres.
Found predominantly in vegetable beds.
Dig out when young, and remove flower and seed heads, and bag.

Fumitory

Trailing annual weed. Leaves are pale green and finely divided. Flowers are small, white, pink or red.
Found predominantly in vegetable beds, garden beds. Prefers light low nutrient soils.
Hand remove when young.

Inkweed

Tall erect, perennial weed. Leaves are linear, lance shaped green to red in colour. Flowers are small green to white in clusters. Fruit are purple black with staining red juice.
Spreads by seeds.
Predominantly found in gardens, and bush land.
Remove by hand pulling, and the use of vigorous groundcovers or heavily mulch.
Considered a noxious weed in Victoria.

Kikuyu

Evergreen grass, spread by stolon and rhizomes. Linear mid green leaves.
Spray with ,Zero 360 Weedspray Concentrate. Following the directions on the bottle.

Lambs Tongue

Low herb, with leaves from a basal rosette. Leaves are grey green, broadly linear, strongly parallel veins, and slightly furry. Flowers are held elegantly above the leaves. Small brown, round heads.
Found predominantly in lawns.
Remove flower heads, and dig out, spray when plants are at an early age, with Lawn Weeder.

Lantana

Tall, erect perennial shrub. Leaves are dull green, fragrant when crushed, rough surface with strong inset venation. Flowers are yellow, in clusters. Followed by fleshy fruit.
Predominantly found in gardens as small hedges, old cottage gardens and as a garden escape in bush. Spread by seed, and dispersed by birds, and animals.
Remove by hand or by spraying with, Zero 360 Weedspray Concentrate. Following the directions on the bottle.

Mallow

Annual to perennial weed. Palm shaped, coarse leaves, with wavy edges. Small, white to pink flowers, followed by brown nutlets changing to bright green when ripe.
Found predominantly in vegetable and garden beds and in bush land.
Remove, by digging out the plant, including the whole taproot. As it can resprout from any pieces left in the ground.

Mullumbimby Couch

Tufted, perennial, spread by rhizome. Leaves are long, glossy green. Flowers are green rounded with 3 bracts emerging from underneath the base of the flower.
Predominantly found in lawns, garden beds, and moist areas.
Remove flower heads to prevent seed from forming, or hand remove.

Nutgrass

Vigorous, perennial sedge. Has vigorous thin and wiry rhizomes and nut like tubers. Glossy green, thin linear leaves. Flowers emerge above the leaves on narrow stems. Consisting of purple green spikes with 2 ? 4 bracts emerging from under the spikes.
Predominantly found in lawns, vegetable gardens, and paved areas.
Use,Zero 360 Weedspray Concentratebut not in when in vegetable patch. Noxious weed in Victoria.

Onion Grass

Vigorous, perennial weed. Narrow, linear leaves, mid green. Flowers arise in-between the foliage and are purple with yellow centres. Underground regenerating structures are corms.
Found predominantly in lawns, and garden beds.
Fairly difficult to remove, dig out corms and whole plant, cut of flower heads, or spray with ,Zero Foam Marker, or ,Zero 360 Weedspray Concentrate. Following the directions on the bottle.

Onion Weed

Vigorous, perennial weed. Linear slightly broad, yellowish green leaves emerging from the ground. Small white flowers, in clusters held high above the foliage. Underground structures are bulbs and bulblets. As they have glossy leaves which repel heerbicides it is suggested tha by adding a few drops of washing up liquid to the spraying solution
Found predominately in lawns, garden beds, and paved areas.
Fairly difficult to remove, keep cutting off flower heads, , or spray with ,Zero 360 Weedspray Concentrate. Following the directions on the bottle. The herbicide will kill the main bulb, but the bulblets will come off, and send up new shoots, which in turn need to be sprayed.

Oxalis

Slender annual, spreading by stolons. Leaves are in 3 leaflets, almost heart shaped. Flowers are held above the foliage and are bright yellow, or pink to mauve, or purple.
Found predominantly in lawns, garden beds and paving.
Spread by seed, or other varieties are spread by bulbs.
Spray with ,Zero 360 Weedspray Concentrate, or with ,Zero Foam Marker. Or spray from July to October with Bindii & Clover Killer. Following the directions on the bottle.

Pampas Grass

Thick, tufted, tall grass. Thin, very sharp leaves, with fine serrations, along the edges. Can do cause serious injuries.
Flowers are large white and fluffy in appearance, held high above the foliage.
Found predominately in gardens, as a feature plant, and in bush land. Seed dispersed by wind.
Remove either physically, wearing protective goggles and gloves. Cutting off to the base, and using a mattock to remove the roots, or paint the stems with, Zero 360 Weedspray Concentrate, within 30 seconds of cutting the stalks. As the cells start to heal over. Follow the directions on the bottle
Considered a noxious weed in New South Wales.

Parramatta Grass

Tall, perennial grass. Leaves are thin. Flowers are long, looking like rats tails.
Found predominately in lawns, garden beds. Spread by wind.
To remove, cut off flower heads, or hand remove.

Paspalum

Tall perennial grass, with mid green leaves. Flowers in 3 to 7 spikes, held above the leaves.
Found predominately in lawns, and garden beds.
To remove cut around the base with a sharp knife, or spray with ,Zero 360 Weedspray Concentrate. Following the directions on the bottle.

Petty Spurge

Small, annual weed. Thin pale green oval leaves, with red stems, which when broken exude out a poisonous milky sap. Flowers are green in clusters. Followed by capsules, which project the seed in to the air.
Found predominately in garden beds. Remove by hand, wearing protective gloves, or spraying with Yates Broadleaf Weed Killer. Following the directions on the bottle.

Pigweed

Prostrate ground cover, with succulent oval leaves on glossy red stems. Small, yellow flowers. Likes moist gardens.
To remove, heavily mulch over the top of it to smother it.

Pimpernel

Sprawling almost prostrate annual herb. Square stems. Leaves are small, clasping to the stem. Flowers are red or blue.
Found predominately in garden beds and paving. Hand remove.

Rhus Tree

Deciduous tall tree, with glossy green, 9 -15 leaflets, slightly drooping, changing to bright shades of gold and red. The young trees tend not to be deciduous, but change colour. Flowers are yellow green, followed by white fruits.
Causing serious allergic attacks, affecting breathing, skin reactions and life threatening reactions.
Is considered a noxious weed in all states. Wear protective clothing and do not burn.

Scotch Thistle

Spiny, annual weed. Leaves are grey green, lobed and covered with small spines. Flowers are purple surrounded by yellow spiny bracts. Followed by fruit, which is a mass of hairs, transported on clothing, animal fur and wind.
Hard to control, as it regenerates from its taproot.
Considered to be a noxious weed in Tasmania and Victoria.

Shepherds Purse

Delicate, in appearance, annual weed. With the narrow, slightly lobed leaves in a rosette at the base and some smaller heart shaped leaves along the stem. Flowers are white in clusters.
Found predominately in garden beds, paving and lawns.
Hand remove, or collect and bag the seed, or smother it with a thick layer of organic mulch, before it seeds in late summer.

Slender Vetch

Trailing, or tendril climber. Leaflets are small slightly round. Flowers are pea like, and purple, appearing in winter to spring. Followed by brown pods.
Collect seed, and hand remove, or spray with, Zero Ready To Use. Following the directions on the bottle.

Sour Sobs

Clover like leaves with bright yellow tubular flowers in spring on slender stalks, that when bitten into has a rather sour taste.
Spread by seed and bulbs and bulbils, which easily detach from the main bulb. Remove before flowering. Carefully lift out the whole plant including surrounding soil and place in the bin. Also mulching the area heavily will prevent it from coming up.

Sow Thistle

Annual herb. Leaves are fine and irregularly lobed, rough, and the stems produce white sap when broken. Flowers are held above the leaves and contain fine hairs with a seed attached, which is carried in the wind or attaches to clothing, or fur.
Found predominately in lawns, paved areas, or garden beds.
Dig out, or spray when actively growing with Roundup or Broadleaf Weed Killer. Following the directions on the bottle.

Swinecress

Mat forming, low growing annual. Leaves are finely divided, grey green to mid green, and fragrant when crushed, similar to mustard. Flowers are small and almost inconspicuous. Followed by small rounded fruits.
Predominantly found in lawns, paved areas, and garden beds.
Remove by hand pulling.

Wandering Jew

Weak trailing, fleshy stem herbaceous weed. Stems are able to take root wherever they touch the ground. The leaves are glossy green, and clasp the stems. Flowers are white, not to be confused with Commelina species which has similar features, but a blue flower, and spaces between the nodes are longer.
To remove, rake into a pile, place and cover with black plastic, in full sun. Remove by hand any fragments left on the surface, otherwise these will regrow, and place with the pile. Leave covered in the sun, for several weeks.It can cause dermatitis on dogs paws and areas where there is scarce amounts of hair.

White Clover

Low growing stoloniferous weed. Leaves are in 3 leaflets, finely toothed with V shape marking on each of the leaflets. Flowers are small, white, rounded, held above the foliage.
Found predominately in lawns, and garden beds. Is known to create dermatitis in dog?s paws and areas where there is scarce amounts of hair. Also irritates human?s skin. There are selective herbicides designed to kill clover. Apply when actively growing.

Winter Grass

Small, annual grass. Blunt, linear light green leaves. Flowers held above the foliage in spikes. Each spikelet consists of 3 ? 4 florets, appearing in late winter.
Found predominately in lawns, and in-between paving. Spray with, Zero Ready To Use, or, Yates Winter Grass Killer. Following the directions on the bottle.

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