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Common Lawn Weeds: Types, Costs & Buying Guide

Common lawn weeds in Sydney include bindii, clover, oxalis, onion weed, winter grass, nut grass, paspalum and pennywort, and the fix depends on which one you have and the time of year. Pulling by hand works for small patches, a registered selective herbicide used exactly as the label directs suits larger outbreaks, and a thick, well-mown lawn stops most seedlings. This guide covers the types, costs, control methods and where to find help.

Key points

  • Identify the weed first, because broadleaf weeds, grassy weeds and sedges each need a different approach.
  • Hand removal in Sydney typically costs about $57 to $105 per hour including GST (October 2026), so small outbreaks are cheapest to pull early.
  • Use only registered products, follow the label exactly and keep children and pets off treated areas until the label says it is safe.
  • A dense, correctly mown and watered lawn is the best long-term defence against common lawn weeds.

What are common lawn weeds?

A lawn weed is any plant growing where you do not want it, from broadleaf plants like clover to grassy invaders like winter grass. Most arrive as seed on wind, birds or mower blades, then take hold where the lawn is thin, compacted or too wet.

The same weed can behave differently on a Sydney buffalo lawn and a Melbourne fescue lawn, so match your plan to your grass and climate.

  • Broadleaf weeds: clover, bindii, dandelion, oxalis, pennywort and kidney weed, which have wide leaves and often flower.
  • Grassy weeds: winter grass, paspalum, crabgrass (summer grass) and kikuyu invading other turf.
  • Sedges and bulbs: nut grass, tall sedge and onion weed, which regrow from underground parts.
  • Moss and algae: signs of shade, compaction or poor drainage rather than true weeds.

Types of common lawn weeds

TypeBest for spottingLifespan and strengthCost band
Bindii (Soliva)Low rosettes with prickly burrs in springWinter annual; easy to prevent, hard to remove once burrs formHand removal: $57 to $105 per hour
CloverThree-part leaves and white flowersPerennial; spreads on hungry, thin lawnsHand removal: $57 to $105 per hour
OxalisClover-like leaves with yellow flowersPerennial; spreads by bulbils and seedHand removal: $57 to $105 per hour
Onion weedStrappy leaves with an onion smellPerennial bulb; very persistentHand removal: $57 to $105 per hour
Winter grass (Poa annua)Light green tufts with seed heads in winterAnnual; dies in summer but reseeds heavilyHand removal: $57 to $105 per hour
Nut grassShiny, yellow-green triangular stemsPerennial; underground tubers make it very strongHand removal: $57 to $105 per hour
PaspalumCoarse, clumping seed headsPerennial; spreads from clumps and seedHand removal: $57 to $105 per hour
PennywortRound, scalloped leaves in damp spotsPerennial; thrives on wet, low-lying lawnsHand removal: $57 to $105 per hour

Onion weed

  • Lift small clumps with a trowel, getting the bulb and bulbils out together; see our onion weed guide.
  • Bag the bulbs in your green waste bin rather than composting them.

Bindii

  • Act in late winter before burrs form; see our bindii weed killer guide.
  • Always use products registered for your lawn type, following the label.

Pennywort

  • It signals wet, shady or compacted soil, so improve drainage; see our pennywort guide.
  • Pull out runners by hand and fill gaps with turf.

Nut grass

  • Digging rarely removes all tubers, so repeat removal and keep mowing; see our nut grass guide.
  • Follow label directions for any selective product, and avoid spraying in wind or before rain.

Winter grass

  • It germinates in autumn and seeds in winter; see our winter grass guide.
  • Bag clippings during a seeding flush to cut the spread.

Clover

  • It thrives on lawns low in nitrogen; see our clover in lawn guide.
  • Improve feeding and mowing to thicken grass and crowd it out.

Paspalum

  • Cut seed heads before they drop; see our paspalum grass guide.
  • Dig out small clumps and refill the gap with turf or seed.

Oxalis

  • Remove it before it flowers and sheds seed; see our oxalis guide.
  • Pull carefully so the bulbils do not scatter.

Kidney weed

  • It forms low mats in lawns and beds; see our kidney weed guide.
  • Edge borders and mow regularly to restrict spread.

Moss

  • It points to shade, compaction or poor drainage; see our moss in lawns guide.
  • Fix the cause rather than only scraping the moss off.

Tall sedge

  • It grows in tough clumps with sharp-edged leaves; see our tall sedge guide.
  • Wear gloves and dig out the whole crown.

Common lawn weeds in Victoria, Melbourne and Brisbane

Weeds vary by climate, so use this as a starting point and check your state or council weed lists.

AreaCommonly reported weedsNotes
SydneyBindii, winter grass, oxalis, onion weed, nut grassWarm, humid summers favour nut grass and paspalum
Melbourne and Victoria (lawn weeds Victoria)Winter grass, clover, dandelion, onion weedCooler winters favour broadleaf weeds and winter grass
Brisbane (weeds of Brisbane)Nut grass, summer grass, paspalum, pennywortHumidity and heavy summer rain favour grassy weeds and sedges
Cooler inland and mountain areasDandelion, clover, thistlesFrost thins turf and opens space for seedlings

Dandelions, summer grass and creeping weeds

  • Are dandelions weeds? Yes, in lawns they are broadleaf weeds with deep taproots that regrow if you leave pieces behind.
  • Summer grass in Australia is usually crabgrass, a summer annual that spreads when the lawn is cut too short and thin.
  • Crab apples in Australia are ornamental trees, not lawn weeds, so searches for them usually mean crabgrass instead.
  • Creeping weeds such as pennywort, kidney weed and oxalis spread by runners or bulbs and quickly fill bare patches.
  • Ground cover weeds in Australia include wandering trad in shady beds, which smothers garden plants and needs thorough removal.
  • Invasive lawn weeds like nut grass and paspalum return from roots or seed, so repeat treatment and keep mowing.

Common lawn weeds cost in Sydney

ServiceSydney price (incl. GST, October 2026)
Weed removal$57 to $105 per hour (typical $75)
Small lawn mow (up to 100 m²)$45 to $100 per visit (typical $60)
Medium lawn mow (100 to 250 m²)$65 to $150 per visit (typical $100)
Large lawn mow (250 to 500 m²)$90 to $210 per visit (typical $140)
Extra-large lawn mow (500 m² and over)$140 to $350 per visit (typical $200)
Edging and trimming add-on$20 to $50 (typical $25)
Fortnightly plan, medium lawn$60 to $120 per visit (typical $75)
  • Lawn size and access: a large lawn with side access costs more than a small flat yard.
  • Weed density: heavy infestations take more hours to hand-weed.
  • Weed type: bulbs and tubers need repeat visits, which adds up.
  • Waste removal: bagging weeds and green waste can add to the quote.
  • Frequency: regular fortnightly visits keep weeds from seeding and reduce long-term costs.
  • Product use: products and application are priced separately and must follow the label.

Pros and cons of common lawn weed control methods

Pros

  • Hand weeding is precise, needs no chemicals and is safe around pets once the area is clear.
  • Selective herbicides can clear broadleaf weeds across large lawns without killing the grass, when used exactly as the label directs.
  • Regular mowing at the right height, feeding and watering thicken the lawn and reduce weed seedlings with no extra cost.
  • Weed mat and mulch suppress weeds in garden beds and along paths.

Cons

  • Hand weeding is slow for large areas and does not remove deep tubers or bulbs completely.
  • Herbicides must be registered, used on the right grass type and applied in calm, dry conditions, and they can harm the wrong lawn.
  • Home remedies like vinegar, salt and boiling water are non-selective, can damage soil and nearby plants, and salt harms soil for years.
  • Weed mat can trap moisture, tear and let weeds root on top over time.

How to choose a weed control method

  1. Identify the weed by leaf shape, flower and growth habit, and take a photo to a nursery if you are unsure.
  2. Check your grass type, because some selective herbicides damage buffalo, kikuyu or couch.
  3. Note the season, since winter annuals and summer weeds need different timing.
  4. Measure the area, and choose hand removal for small patches or a registered product for larger outbreaks.
  5. Read the whole label for rates, protective gear, pets, children and rain-free periods.
  6. Plan follow-up visits for bulbs and tubers, because one pass rarely clears them.

Common lawn weeds control essentials

  1. Use only registered products, follow the label exactly and never mix products or use them off-label.
  2. Wear the protective gear the label lists, and keep children and pets off treated areas until the label says it is safe.
  3. Do not spray in wind or before rain, and keep runoff out of drains and waterways.
  4. In NSW, anyone spraying weeds for fee or reward needs an EPA ground applicator licence, though routine garden and lawn maintenance falls under an exemption.
  5. Mow regularly and avoid scalping, because thin, short lawns invite weeds.
  6. Water according to Sydney Water rules: before 10 am or after 4 pm, with a trigger nozzle on hand-held hoses.
  7. Run powered tools within NSW hours: 7 am to 8 pm Monday to Saturday, and 8 am to 8 pm on Sundays and public holidays.

Weed killers for common lawn weeds

Pick a product for the weed and grass type, and treat the label as the rule.

Tools and barriers for common lawn weeds

  • A weed puller removes taproots such as dandelions without bending over.
  • A Yates path weeder suits cracks in paths and driveways.
  • A weed mat roll suppresses weeds in garden beds under mulch.
  • Book a licensed handyman for paths, pavers or fences that need repair after weeds have lifted them.

FAQ: common lawn weeds

Where can you get weed in Sydney?

This guide is about garden weeds, not drugs. If you need garden weeds removed, a Sydney lawn service charges about $57 to $105 per hour. If you want weed killer, Bunnings and nurseries stock registered lawn products, and the label must be followed exactly.

Are dandelions weeds?

In a lawn, yes. Dandelions are broadleaf weeds with deep taproots, and they regrow from root pieces. Pull them with a weed puller after rain, and thicken the lawn to stop seedlings. In a garden bed, some people leave them, but they spread quickly.

What are the most common lawn weeds in Sydney?

Bindii, winter grass, clover, oxalis, onion weed, nut grass and paspalum are the most common. Which ones you see depends on the season, your grass and the soil. Take a photo to a nursery if you are unsure.

What is summer grass in Australia?

Summer grass is usually crabgrass, a fast-spreading annual that appears in hot weather. It thrives in short, thin lawns. Mow higher, feed and water properly, and use a registered product exactly as the label directs if hand removal is not enough.

Can you use vinegar or salt on lawn weeds?

You can, but they are non-selective and will kill the lawn around the weed. Salt harms soil for years, and vinegar can burn nearby plants. They are not safer by default. A registered selective product or hand removal is a better option.

How much does weed removal cost in Sydney?

Weed removal in Sydney typically costs about $57 to $105 per hour including GST, with a typical rate near $75 (October 2026). Heavy infestations and bulbs take longer. Regular mowing visits also help prevent seed from spreading.

Getting common lawn weeds under control in Sydney

We weed, mow and edge lawns on a regular schedule so weeds do not get the chance to seed. Book a visit, and we will identify what you have and plan the right fix. Book lawn mowing and weed control in Sydney and get a clean, even lawn.