GIANT RHUBARB (Gunnera tinctoria & manicata)
There are two species of Giant Rhubarb listed in the Third Schedule of the 2011 Regulations, the former originating in Southern South America and the latter from Brazil. Both plants were introduced to the UK as garden ornamentals in the mid 1800’s and were widely promoted as architectural herbs for planting around ponds and in damp areas. However, the Giant Rhubarb’s large stature quickly outgrew all but the largest gardens and estates, and it had become established in the wild in the UK by 1908, and had escaped into the wild in Ireland by 1939.
Extract from the Non Native Species Secretariat Identification Sheet for Giant Rhubarb
Gunnera tinctoria has become particularly well established and problematic in the West of Ireland. It seeks out a range of sunny and partly shaded, sheltered habitats on permanently wet soils and grows best in temperate areas with high rainfall. Giant Rhubarb is a fast-
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