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Giant Hogweed Wikimedia Commons
Apiaceae

Giant Hogweed

Heracleum mantegazzianum

Danger and caution.

Family
Apiaceae
Genus
Heracleum
Native to
Caucasus region, Central Asia
Bloom season
Summer
Type
Biennial or perennial
Height
200-550 cm
Sunlight
Full sun to partial shade
Soil
Rich, moist
Water
Moderate to high
Hardiness
3-9
Lifespan
Biennial to short-lived perennial

Did you know

  • The sap causes severe phytophotodermatitis, producing painful blisters and burns when skin is exposed to sunlight.
  • A single plant can produce up to 100,000 seeds, contributing to its status as a highly invasive species.
  • The flower heads can be up to 80 cm across, making them among the largest of any temperate plant.
  • It was originally introduced to Europe as an ornamental garden plant in the 19th century.
  • The genus name Heracleum references Hercules, alluding to the plant's enormous size.

Color meanings

0

Warning

1

Deception

2

Hidden danger

Uses

  • Invasive species management (removal)
  • Historical ornamental (now discouraged)