Platycarpha glomerata gives the impression of a thistle due to its spiny rosette of leaves. However, it flowers in the crown of the rosette. The plants die back in autumn and reemerges in spring from a woody rootstock. It occurs in the grasslands, often on the floodplains next to rivers.
Platycarpha glomerata does best in a damp spot. Allow enough space since it sukers easily.