RHS Other common names
ysgallen y gors
Synonyms
Carduus palustris
Annual Biennial
A native, biennial thistle reaching to around 1.5m in height, typically found growing in moist soils. The upright, spiny and hairy stem bears dark green, spiny-edged leaves and is topped by clusters of dark purple, thistle flower heads in summer
Position
Full sun, Partial shade
Soil Types
Clay, Loam, Sand
Max Height
1-1.5 metres
Max Spread
0.1-0.5 metres