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Heracleum mantegazzianum (Giant Hogweed)

Type: Species | Edit History      Plant ID - 502954



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Netty (13946)

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Scientific Classification
Kingdom: Plantae
Division: Magnoliophyta
Class: Magnoliopsida
Order: Apiales
Family: Apiaceae
Genus: Heracleum
Species: Heracleum mantegazzianum
 
Common Names add
Plant Types edit
  • Biennial
  • Invasive
  • Poisonous
  • Wildflower
Zones / Hardiness edit
  • 3a (to -35 F / -37 C)
  • 3b (to -30 F / -34 C)
  • 4a (to -25 F / -32 C)
  • 4b (to -20 F / -29 C)
  • 5a (to -15 F / -26 C)
  • 5b (to -10 F / -23 C)
  • 6a (to -5 F / -21 C)
  • 6b (to 0 F / -18 C)
  • 7a (to 5 F / -15 C)
  • 7b (to 10 F / -12 C)
  • 8a (to 15 F / -9 C)
  • 8b (to 20 F / -7 C)
  • 9a (to 25 F / -4 C)
  • 9b (to 30 F / -1 C)
Height (Maximum) edit
  • 5 to 10 feet (1 1/2 to 3 m)
Spread (Maximum) edit
  • 5 to 10 feet (1 1/2 to 3 m)
Flowering Start edit
  • June
Flowering End edit
Leaf Colour edit
  • Green - Medium
Leaf Shape edit
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Suitable For edit
Sun Exposure edit
  • Full Sun
  • Partial Shade
  • Full Shade
Soil Types edit
  • Well-drained
  • Moist
  • Tolerant of Most Types
Soil pH edit
Bloom Colour edit
  • White
Wildlife Value edit
Propagation Techniques edit
  • Seed
Skill Level edit
Additional Short Notes add
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Contributors For This Plant
Netty (13946)


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Add Your Opinion About This Plant

Netty (13946) wrote on Aug 08 2010
Coming into contact with the sap of giant hogweed, followed by exposure to sunlight, can produce painful, burning blisters, also known as photo-dermatitis. Hogweed stems contain a large amount of juice that squirts out when stems are broken or cut.
Contact with the eyes can cause temporary and possibly permanent blindness.
One plant can produce up to 100,000 seeds in one growing season.


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Images for this Plant


Photo of Heracleum mantegazzianum (Giant Hogweed)
Heracleum mantegazzianum (Giant Hogweed)
photo / image / picture
Uploaded
Aug 08 2010
by Netty (13946)
I like this image
1 person likes this image
This image is copyright of member Netty (13946).
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Photo of Heracleum mantegazzianum (Giant Hogweed)
Heracleum mantegazzianum (Giant Hogweed)
photo / image / picture
Uploaded
Aug 08 2010
by Netty (13946)
I like this image
1 person likes this image
This image is copyright of member Netty (13946).
You must contact this member if you have a usage request.










This page includes name data supplied by ITIS.gov. View their own page for this plant.