Singapore Daisy

Singapore daisy is a low-growing, mat-forming perennial groundcover. Stems trail along the soil surface and root readily at the nodes, allowing the plant to spread rapidly outward and smother anything in its path. Leaves are glossy, dark green, fleshy and coarsely toothed, typically with three shallow lobes (hence the species name trilobata), arranged oppositely along the stem.

The flowers are bright yellow, daisy-like heads roughly 2-3cm across, borne on short upright stalks above the foliage. Flowering can occur for most of the year in warm climates, though seed set in Australia is limited and the plant relies mainly on vegetative spread for reproduction.

Roots form at each stem node in contact with moist soil, creating a dense, interconnected mat. Even small stem or root fragments left behind after removal can re-establish, which is the main reason this weed is so persistent and difficult to eradicate once established.

Singapore daisy is a declared weed in parts of Australia, particularly in Queensland and northern New South Wales, where the warm, humid climate favours its growth. It commonly invades garden beds, embankments, disturbed roadsides, waterway margins and bushland edges, often escaping from ornamental plantings where it was originally used as a groundcover.

Management relies on physical removal of all stem and root fragments, follow-up monitoring for regrowth, and preventing dumping of garden waste containing viable stem pieces into bushland or waterways. Because it spreads readily from small fragments, disposal of removed material needs care to avoid creating new infestations elsewhere.