Darnel ryegrass is an annual grass, up to about one metre tall, that is grown as a weed or curiosity rather than a garden plant. It is grown from seed sown in spring and has a long history as a weed of cereal fields.
Family
Poaceae (Grass family)
Grows as
Grass, Annual
Light
Full sun
Water
Keep soil lightly moist while seedlings establish, then water during dry spells.
Soil
Ordinary garden soil or loam, not too heavy.
Temperature
10–25 °C; frost-tender in cold climates.
How easy
Easy
Safety
Toxic: Seeds (grains) contain temulin and related alkaloids that can cause dizziness, nausea, convulsions and, in severe cases, death when contaminated grain is eaten.
Native range
Macaronesia, N. Africa, Temp. Eurasia
Climate
subtropical
About
Lolium temulentum, commonly known as darnel, poison darnel, darnel ryegrass or cockle, is an annual flowering plant in the grass family Poaceae. The plant stem can grow up to one meter tall, with inflorescence in the ears and purple grain. It has a cosmopolitan distribution.
Text excerpted from the Wikipedia article Lolium temulentum 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.