Guernsey fleabane is a fast-growing annual weed of the daisy family, native to South America and now widespread in warm and temperate regions, where it is considered invasive. It is grown as a weed rather than a garden plant, and is perennial only in parts of the Western Cape of South Africa.
Family
Asteraceae (Daisy family)
Grows as
Annual, Perennial
Light
Full sun
Water
Tolerates a range of moisture and grows readily in rain-fed conditions; water only when establishing in a garden.
Soil
Adapts to most soils, including disturbed and poor ground.
Temperature
Grows in subtropical to temperate conditions; frost-tender in cold climates.
How easy
Easy
Native range
Mexico to S. Trop. America
Climate
subtropical
About
Erigeron sumatrensis (syn. Conyza sumatrensis) is an annual herb probably native to South America, but widely naturalised in tropical and subtropical regions, and regarded as an invasive weed in many places.It is a perennial in the Western Cape of South Africa.
In the British Isles it is known as Guernsey fleabane. Other common names include fleabane, tall fleabane, broad-leaved fleabane, white horseweed, and Sumatran fleabane.
Where it grows
It probably originates from South America, but is now naturalised in North America, Europe, Africa, Asia, and Australasia. It poses a significant threat to wildlife conservation areas and other reserves. In Britain, of the non-native former Conyza species, it is the second most abundant (after Erigeron canadensis) and is typically found in London and the South East of England. It was first recorded in London by Brian Wurzell in 1984,
Text excerpted from the Wikipedia article Erigeron sumatrensis by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.