Herbs safe for cats — PlantSage
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Herbs safe for cats
— What plants are safe for cats — and what to avoid.
Cats lack the glucuronidation enzymes needed to metabolise many plant compounds, making them more sensitive to toxins than dogs or humans. Essential oils — especially phenolic ones — are particularly hazardous. This page reflects ASPCA verdicts and feline-specific veterinary references. ALWAYS consult a vet first.
Always consult a qualified clinician, veterinarian, IBCLC, or midwife before introducing any herbal preparation. If toxic exposure is suspected, contact the appropriate poison control hotline immediately.
I
Generally safe
Tolerated by cats at typical doses. Always start low.
Catmint
Nepeta cataria
Catnip — produces euphoric response in ~60% of cats. Non-toxic.
Valeriana Officinalis
Stimulates many cats similarly to catnip. Safe in moderation.
Matricaria Chamomilla
Calming infusion (dilute) safe. Avoid in pregnant cats.
Pot marigold
Calendula officinalis
Non-toxic. Topical for skin issues.
Oats
Avena sativa
Oats and oat grass — popular safe greens for cats.
Basil
Ocimum basilicum
Basil — ASPCA non-toxic. Some cats enjoy nibbling.
II
Use with caution
Context-dependent. Reduce dose, watch for reactions, or use only under practitioner guidance.
Thyme
Thymus vulgaris
Small culinary amounts OK. Essential oil is toxic.
Rosmarinus Officinalis
Plant non-toxic but essential oil is hepatotoxic.
Lavandula Angustifolia
Dried herb OK in small amounts. Essential oil is toxic to cats.
Echinacea Purpurea
Limited feline data. Short-term low dose only with vet supervision.
III
Avoid entirely
Known toxic or strongly contraindicated for cats.
White Trumpet Lily
Lilium longiflorum
True lilies — even pollen causes acute kidney failure. EMERGENCY.
Garlic
Allium sativum
Garlic — even small amounts cause hemolytic anemia in cats.
Allium cepa
Allium cepa
Onion — same hemolytic mechanism, very toxic to cats.
Melaleuca Alternifolia
Tea tree oil — even diluted topical use can be fatal.
Mentha pulegium
Mentha pulegium
Pennyroyal — hepatotoxic, severe toxicity.
_SKIP_
Aloe vera
Saponins cause vomiting, depression.
Hedera Helix
English ivy — toxic to cats.
Poet's Narcissus
Narcissus poeticus
Daffodils — bulbs especially toxic.
IV
Source references
Verdicts on this page curated against ASPCA Toxic & Non-Toxic Plants. See also the PlantSage methodology page for how we vet safety claims.
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