What grows up to 15 feet tall, looks like Queen Anne's lace on steroids and has a toxic sapthat can cause burns, blisters and even blindness? Giant hogweed.Heracleum mantegazzianum is not new to the U.S. Originally from southwest Asia, it was imported to Europe as a garden plant in the 19th century, and its first record of appearing in the U.S. was in 1917 in an ornamental garden in New York, according to the publication "Giant Hogweed: Identification and Control" from Virginia Cooperative Extension at Virginia Tech in Blacksburg, Virginia.
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