GARDEN Dumping TREND Triggers WESTERN SYDNEY Weed WARNING
Incorrect disposal of seemingly harmless garden waste could be spreading more than 10 invasive weed species through Western Sydney’s bushland – prompting Western Sydney Weeds Authority (WSWA) to issue a Spring warning.
WSWA says the illegal dumping of garden organics is a growing problem across the Hills Shire, Hawkesbury, Blacktown and Penrith Local Government Areas (LGAs) – and is expected to worsen as the Spring gardening season ramps up next month.
“Garden waste dumping is a major issue across Western Sydney with roadsides, parks and reserves all prime dumping hotspots. It usually gets worse in Spring, as more people tend to their gardens,” said WSWA’s General Manager, Chris Dewhurst.
“Dumping what looks like harmless garden waste can trigger serious weed outbreaks, with wind and rain spreading the seeds and root fragments into nearby bushland.”
Lawn clippings are the most commonly dumped type of green waste and often contain weeds. WSWA regularly identifies more than 10 invasive species in dumped garden waste, including Yucca, Agapanthus, Agave, Spider Plant, Mother of Millions and Opuntia.
After entering bushland, these weeds overtake native vegetation, increase bushfire risk, reduce valuable wildlife habitat, harbour pests, and in some cases, pose risks to livestock and people. Fertilised cut grass also leaches excess nutrients into the soil, harming native plants and fueling weed growth.
Weeds like Mother of Millions and Opuntia are classified by the NSW Government as priority weeds. Spreading rapidly, they are harder to eradicate – causing major environmental and economic harm.
“Any weed is bad news for our environment. But once priority weeds become established, they’re notoriously difficult to wipe out and can devastate native habitats and agricultural land. Councils and land managers can then spend years fighting them,” Mr. Dewhurst said.
The penalties for illegally dumping garden waste are also significant, ranging from $5,000 to $5 million or seven years’ imprisonment, depending on severity.
WSWA says managing garden waste responsibly is simple and has shared practical tips for home gardeners and landscaping contractors.
WSWA’s Guide to Garden Waste Disposal
To prevent weed spread and protect biodiversity, follow the four Ds:
- Destroy priority weeds – separate them, seal in a black plastic bag, and put it in the sun.
- Deposit non-priority weeds and garden waste into your green organics bin and priority weeds into your red general waste bin.
- Decontaminate tools, machinery and boots to prevent spread.
- Deliver larger loads to a green waste recycling facility or use Council’s bulky garden organics collection service.
TIP: Green bin overflowing? Keep excess waste in a container until your bin is emptied again.
The Hills Shire and Penrith Councils both offer a curbside bulky organics collection service, and Blacktown City households can access two $50 rebates towards eligible home composting solutions, including worm farms and bokashi bins.
Residents and businesses from the Hawkesbury, Penrith, Hills and Blacktown LGAs can also use Hawkesbury City Council’s Waste Management Facility. It accepts green waste at a set fee, excluding palms, bamboo, yukka, rootballs, stumps and other non-mulchable garden organics.
Residents can identify priority weeds using the NSW WeedWise website and report illegal dumping using the Snap Send Solve app. For more information about weed disposal, email WSWA at council@wswa.nsw.gov.au, call (02) 4574 9600, or visit wswa.nsw.gov.au.
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