Plant Smart

Humulus lupulus

Humulus lupulus is toxic to cats and dogs. The reported severity is critical. Also known as Common Hops and Western Hop.

dogs cats

Mild Moderate Severe Critical

This plant is known to be potentially deadly!

  • If you're comfortable with the risk, ensure this plant is out of reach of your animal.
  • If you suspect your animal has ingested portions of this plant, immediately consult your veterinarian.
  • If your animal is experiencing any of the associated symptoms, immediately contact your veterinarian's emergency number for further instructions.

If your animal ate this plant, call your veterinarian now, or one of these services.

What do I do right now?
  • Australia
    Animal Poisons Helpline 1300 869 738 24 hours, every day · From $75
  • Austria
    Vergiftungsinformationszentrale 01 406 43 43 24 hours, every day
  • Belgium
    Centre Antipoisons 070 245 245 08:00 to 22:00 on weekdays, 10:00 to 22:00 at weekends · Human calls come first. The centre has no funding for animal work.
  • Canada
    Pet Poison Helpline (855) 764-7661 24 hours, every day · $89 for each incident
  • France
    Centre National d'Informations Toxicologiques Vétérinaires 04 78 87 10 40 08:30 to midnight, every day
  • Germany
    Giftinformationszentrum Bonn 0228 19240 24 hours, every day · Germany has no dedicated animal service. Human calls come first, so an animal call can wait.
  • Ireland

    Ireland has no animal poison service for owners. Call your veterinarian. An Irish veterinarian can consult the Veterinary Poisons Information Service in the United Kingdom.

  • Italy
    Centro Antiveleni di Milano 02 6610 1029 24 hours, every day
  • Netherlands
    Nationaal Vergiftigingen Informatie Centrum 088 755 8000 Veterinarians only 24 hours, every day · Call your veterinarian. Your veterinarian calls this line.
  • New Zealand
    Animal Poisons Helpline 0800 869 738 24 hours, every day
  • Sweden

    Giftinformationscentralen stopped answering questions about animals on 1 July 2018. Call your veterinarian or an animal hospital.

  • Switzerland
    Tox Info Suisse 145 24 hours, every day · From outside Switzerland, call +41 44 251 51 51.
  • United Kingdom
    Animal PoisonLine 01202 509 000 24 hours, every day · £35 from 08:00 to 20:00 Monday to Friday, £45 at other times
    Veterinary Poisons Information Service 020 7305 5055 Veterinarians only 24 hours, every day · A members only service. Your veterinarian calls this line.
  • United States
    ASPCA Animal Poison Control Center (888) 426-4435 24 hours, every day · A consultation fee applies
    Pet Poison Helpline (855) 764-7661 24 hours, every day · $89 for each incident

Symptoms to watch for

Panting Fever Seizures Death

The color of each symptom follows the severity scale above.

About

Humulus lupulus, the common hop or hops, is a species of flowering plant in the hemp family, Cannabaceae. It is a perennial, herbaceous climbing plant which sends up new shoots in early spring and dies back to a cold-hardy rhizome in autumn. It is dioecious and native to West Asia, Europe and North America.

How this plant poisons

H. lupulus can cause dermatitis to some who handle them. It is estimated that about 1 in 30 people are affected by this.

Common Names

  • Common Hops
  • Western Hop

Also recorded as Bine, Common Hop, Hop and Hops.

Related plants

More from the Cannabaceae family:

Browse all 281 plants

Images

Suggest a change
Wikipedia

Facts

Family
Cannabaceae
Duration
Perennial
Growth habit
Forb/herb, Vine
Native to
Flanders, Belgium, Brussels-Capital Region, Flemish Region, Walloon Region, Grand Duchy of Luxembourg, Portugal Continental
In the wild
FR, GB, DE, NL, BE, RU + more
Source
Wikipedia, CC BY-SA 4.0
Elsewhere
GBIF iNaturalist USDA

Countries with the most wild observations, from GBIF data.