Giant hogweed is a biennial herb that grows to 8-14 feet. Plants sprout in early spring from forked taproots or seeds. Stems are hollow, and leaves are lobed. The best time to identify giant hogweed is when it is in bloom in June.
Confirmed observations of Giant hogweed submitted to the NYS Invasive Species Database. For more information, visit iMapInvasives
This plant colonizes rich, moist soils along roadside ditches, stream banks, waste areas, and forest edges.
Threats & Impacts:
Giant hogweed is on the federal noxious weed list because of its dangerous sap. It threatens riparian areas by displacing native plants and exacerbating soil erosion.
CAUTION – This plant contains toxic sap that can cause severe skin irritation, blistering, and scarring. Statewide eradication efforts are currently underway by NYSDEC and partner organizations. If you've found giant hogweed, please contact APIPP for management assistance.