BIOSECURITY RISKS OF THE WET TROPICS
SINGAPORE DAISY
11 NOVEMBER 2025
Singapore Daisy (Sphagneticola trilobata) is a fast-growing, mat-forming groundcover that poses a serious threat to biodiversity in Queensland’s Wet Tropics.
Originally introduced as an ornamental plant, it has become highly invasive—smothering native vegetation, disrupting ecosystems, and invading riparian zones.
Its ability to spread rapidly through stem fragments makes it difficult to control and a persistent challenge for landholders and conservationists alike.
WHAT IS IT?
Singapore daisy (Sphagneticola trilobata) is a fast-growing, mat-forming groundcover native to Central and South America. It was introduced as an ornamental plant but has become a highly invasive species in Queensland’s Wet Tropics
WHY IS IT A PROBLEM?
Singapore daisy spreads aggressively, smothering native vegetation and reducing biodiversity. It forms dense carpets that prevent native plants from regenerating, disrupts ecosystems, and can invade riparian zones, impacting water quality.
CHARACTERISTICS
Singapore daisy is a creeping groundcover that can also climb low structures. It has glossy, dark green leaves which are usually three-lobed with toothed edges. It produces bright yellow, daisy like flowers, 20–30 mm across, appearing year-round.
Singapore daisy propagates through stem fragments, making it difficult to control. It is found in disturbed areas, roadsides, gardens, and riparian zones.
HOW TO SPOT IT ON YOUR PROPERTY
Look for dense mats of trailing ground cover with glossy, lobed leaves and bright yellow flowers. It often spreads along fences, waterways, and disturbed soils.
WHAT TO DO ABOUT IT
- Prevention: Avoid planting Singapore daisy and maintain healthy vegetation and tree cover in riparian areas. Fragments of Singapore daisy can be spread on mowers and slashers. Carefully clean down equipment to prevent spread.
- Physical removal: Hand-pull small infestations, ensuring all fragments are removed.
- Chemical control: There are two herbicides registered for the control of Singapore daisy. Refer to Biosecurity Queensland for up-to-date information on their use.
RESOURCES:
Check out your Local Government’s Biosecurity Plan available through your Council’s website.
Refer to the Queensland Government Pest Fact for Singapore daisy for detailed control information and
herbicide rates.
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