About
Gunnera tinctoria / g. _ cryptica are considered invasive and should not be cul.
About the genus
Gunnera may be evergreen or herbaceous rhizomatous perennials, and range from small creeping plants to very large with huge leaves. The flowers are small, borne in narrow panicles or spikes and may be followed by small berry-like fruits
Plant details
Suggested usesHerbaceous borders, cottage gardens, cutting.
Care notes
CultivationGunnera 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 to grow in the wild. They are banned from sale and gardeners already growing these plants should undertake measures to prevent spread beyond their garden and ensure correct disposal of plants. Existing plants in gardens do not have to be removed, but any excess material should be disposed of either by burning on site or taking to a waste processing centre. These rules do not apply to G. insignis and G. killipiana, but these are not hardy in most gardens. See invasive non-native species for further advice
PruningMinimal pruning required. Remove dead or damaged growth as needed.
PropagationPlease see cultivation notes
Pest resistanceGenerally trouble-free. Monitor for slugs and aphids.
Disease resistanceGenerally disease-resistant. Ensure good air circulation.