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Heracleum sosnowskyi
Also called Sosnowski's Hogweed
Sosnowsky's hogweed is a tall, monocarpic perennial in the carrot family that grows 3 to 5 metres high and dies after flowering and seeding. It is an invasive weed in parts of Eastern Europe, so it should not be grown in gardens.
Heracleum sosnowskyi, or Sosnowsky's hogweed, is a monocarpic perennial herbaceous flowering plant in the carrot family, Apiaceae. Its native range includes the central and eastern Caucasus regions and South Caucasus. The native ranges of Heracleum sosnowskyi and H. mantegazzianum, a close relative, overlap. Sosnowsky's hogweed is now a common weed in the Baltic States, Belarus, Poland, Russia, and Ukraine.
All parts of H. sosnowskyi contain phototoxic furanocoumarins. It is dangerous for humans because even small drops of the plant's sap can cause skin photosensitivity and burns. The plant is less dangerous for animals that have thick hair to protect them from the sun.
Text excerpted from the Wikipedia article Heracleum sosnowskyi by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
