Species Detail - Giant Hogweed (Heracleum mantegazzianum) - Species information displayed is based on all datasets.

Terrestrial Map - 10km

Distribution of the number of records recorded within each 10km grid square (ITM).
Live Map

Marine Map - 50km

Distribution of the number of records recorded within each 50km grid square (WGS84).
Live Map

Species image

Heracleum mantegazzianum
Heracleum mantegazzianum
Giant Hogweed
NBNSYS0000003711 RecommendedWell-formed
Invasive Species: EU Invasive Alien Species Regulation No. 1143/2014 || Invasive Species: Regulation S.I. 477/2011 (Ireland) || Invasive Species: High Risk Invasive Species (2013 Report) || Invasive Species: Regulation S.I. 374/2024 (Ireland)
heman
Sommier & Levier
Flowering plant
Species
1564
224
82
01/01/1600
31/05/2025
2 January (recorded in 2018)
7 December (recorded in 1987)
National Biodiversity Data Centre, Ireland, Giant Hogweed (Heracleum mantegazzianum), accessed 30 August 2025, <https://maps.biodiversityireland.ie/Species/29131>

Records per month (across all datasets)

National Biodiversity Data Centre, Ireland, Giant Hogweed (Heracleum mantegazzianum), image, accessed 30 August 2025, <https://maps.biodiversityireland.ie/Species/29131>

Records per year (across all datasets)

National Biodiversity Data Centre, Ireland, Giant Hogweed (Heracleum mantegazzianum), image, accessed 30 August 2025, <https://maps.biodiversityireland.ie/Species/29131>