Tiny red-brown flowers are borne in erect panicles to 1m in height. Although there are many plants sold under this name, it is highly likely that they are actually the hybrid Gunnera × cryptica.
Gunnera tinctoria / G. × cryptica are considered invasive and should not be cultivated. Strict rules apply in the UK for Gunnera tinctoria and G. × cryptica – it is an offence to plant or cause these ...