Lemon verbena Toxic?

Updated 2026-03-06| 5 min read| 2,841 found this helpful
Lemon verbena
1

No confirmed animal poisoning cases linked to lemon verbena consumption have been recorded in available research

2

Lemon verbena is explicitly not recommended for use as feed for companion animals or livestock

3

Other species in the Verbenaceae family range from non-toxic to highly toxic, creating high misidentification risk

FAQ

Is Lemon verbena toxic to Humans?

No reported toxic effects from small culinary use; large intake may cause mild gastrointestinal discomfort or rare allergic reactions (Non-toxic)

Is Lemon verbena toxic to Cats?

No documented toxic symptoms; excess consumption may lead to transient mild gut irritation including soft stool or minor vomiting (Non-toxic)

Is Lemon verbena toxic to Dogs?

No documented toxic symptoms; excess consumption may lead to transient mild gut irritation including vomiting or diarrhea (Non-toxic)

Is Lemon verbena toxic to Horses?

No reported poisoning cases; large unplanned intake may cause mild abdominal discomfort or reduced appetite (Non-toxic)

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Toxicity Details

Humans
Non-toxic

No reported toxic effects from small culinary use; large intake may cause mild gastrointestinal discomfort or rare allergic reactions

Cats
Non-toxic

No documented toxic symptoms; excess consumption may lead to transient mild gut irritation including soft stool or minor vomiting

Dogs
Non-toxic

No documented toxic symptoms; excess consumption may lead to transient mild gut irritation including vomiting or diarrhea

Horses
Non-toxic

No reported poisoning cases; large unplanned intake may cause mild abdominal discomfort or reduced appetite

Toxicity Snapshot

Toxic PartsNo confirmed toxic plant parts identified in animal studies; all plant parts are unsuitable for use as animal feed
Exposure RouteIngestion (most common exposure); rare mild allergic reaction from direct skin contact in sensitive individuals/animals
Toxic CompoundsCitral; Limonene; Geraniol; Neral; Flavonoid glycosides

First Aid & Prevention

First 30 Minutes

  • • Rinse mouth thoroughly with clean water if large quantities of the plant are ingested
  • • Remove all remaining plant material from reach to prevent further consumption
  • • Monitor for signs of gastrointestinal distress (vomiting, diarrhea, lethargy) for 24 hours post-exposure

Contact Vet Immediately

  • • If your pet or livestock shows persistent vomiting, diarrhea, or lethargy after ingesting the plant
  • • If you cannot 100% confirm the ingested plant is lemon verbena (risk of toxic Verbenaceae family misidentification)
  • • If a horse ingests large quantities of the plant as a replacement for regular feed

Prevention

  • • Clearly label all Verbenaceae family plants in your garden to avoid misidentification
  • • Never use lemon verbena as a supplementary feed for any livestock or companion animal species
  • • Keep potted lemon verbena out of reach of pets that regularly chew household plants

Treatment & Prognosis

  • • Provide supportive care including access to clean fresh water to prevent dehydration
  • • Administer vet-prescribed gut protectants if gastrointestinal irritation occurs
  • • Treat rare allergic reactions with prescribed antihistamines under professional guidance
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Professional Toxicology

Scientific NameAloysia citriodora Paláu (syn. Aloysia triphylla Britton, Lippia triphylla Kuntze, Verbena triphylla L'Hér.)
AliasesAloise、Herb louisa、Lemon beebrush、Louisa herb、Zitronenverbene、Verveine odorante、Verbena odorosa
Toxicity Grade
HumansNon-toxic
CatsNon-toxic
DogsNon-toxic
HorsesNon-toxic
Target Organs
No specific target organs identified, as no consistent toxic effects have been confirmed
Mechanism of Action

• No confirmed toxic mechanism identified in existing peer-reviewed research

Other Species Risk (CliniTox)

Information from CliniTox veterinary text.

Cattle: No reported poisoning cases; large intake may cause mild gastrointestinal upset, feed use is not recommended
Sheep: No documented toxic effects; intentional feeding is not advised due to misidentification risk with toxic Verbenaceae species
Rabbits: No confirmed poisoning reports; avoid feeding large amounts to prevent digestive disturbance
Confusion Risk

The following plants look similar and may be confused:

Lantana Lantana camara
Verbenaceae family member that may be confused with immature lemon verbena; lantana is highly toxic to animals, distinguished by its clustered colorful berries and lack of lemon leaf scent
Common vervain Verbena officinalis
Related Verbenaceae species with similar leaf shape; non-toxic, distinguished by its lack of strong lemon aroma when leaves are crushed
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Related Toxic Plants

Common lantana
Common lantana
Lantana camara
High
Texas lantana
Lantana urticoides
High
Black vervain
Black vervain
Verbena stricta
Moderate

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Data Sources

This information is for reference only and does not constitute medical advice. If ingestion or poisoning is suspected, seek medical or veterinary attention immediately.

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