If your dog just ate a lily, here is the short version: most lilies are far less dangerous to dogs than they are to cats, but a few are genuinely serious, and telling them apart is the whole game. Are lilies toxic to dogs? Some are, some are not, and the ones that make headlines for killing cats are usually the mild ones for dogs. The plants that actually put a dog at risk are different, and most pet owners have them mixed up.
This guide sorts the lily family the way a dog owner needs it: which ones cause a bad afternoon, which ones need a vet, and which ones you can keep on the windowsill without losing sleep. Every toxicity claim here is sourced to the ASPCA, Pet Poison Helpline, or veterinarian-authored references.
TL;DR
- True lilies (Easter, Asiatic, tiger, stargazer, oriental) and daylilies are the ones that kill cats. For dogs, veterinary sources classify them as nontoxic. A dog that eats one usually gets mild stomach upset, not kidney failure.
- The genuinely dangerous lilies for dogs are not true lilies at all. Lily of the valley (heart) and glory or gloriosa lily (multiple organs) are the two to keep out of your home entirely.
- Peace lily and calla lily cause painful mouth and throat irritation from calcium oxalate crystals. Unpleasant, rarely serious.
- The danger is eating, not smelling. Pollen on the fur is a cat problem (they groom it off and swallow it). A dog that sniffs a bouquet is fine.
- If your dog ate lily of the valley or glory lily, call now: ASPCA Animal Poison Control 888-426-4435 or Pet Poison Helpline 855-764-7661.
- Symptoms of lily poisoning in dogs usually start within about 2 hours: drooling, vomiting, diarrhea, or pawing at the mouth.
Are lilies toxic to dogs? The short answer
“Lily” is a name shared by dozens of unrelated plants, and their toxicity ranges from nearly harmless to potentially fatal. That range is why a single yes-or-no answer fails dogs.
Here is the honest breakdown, straight from veterinary sources. The lilies most people picture, the tall fragrant Easter and oriental lilies in a florist’s bouquet, plus daylilies in the garden, are the same plants that cause sudden, fatal kidney failure in cats. In dogs, those plants do not do that. PetMD, in a veterinarian-authored guide, classifies the Peruvian lily, tiger lily, daylily, and Easter lily as nontoxic to dogs. The ASPCA puts it plainly: lilies “can be toxic to both dogs and cats, however the effects are much more severe in cats.”
That does not mean a dog should munch a bouquet. Eating any plant matter can upset a dog’s stomach. But “upset stomach” and “kidney failure” are different universes, and dog owners deserve the calibrated version, not the cat warning copied over.
The lilies that genuinely endanger dogs are a separate group: lily of the valley, glory lily, and (for painful mouth irritation rather than organ damage) peace and calla lilies. We will take each one in turn.
The lilies that are mostly mild to dogs
These are the famous ones. They are why lilies carry such a frightening reputation. That reputation is earned, but it is earned in cats.
True lilies (Easter, Asiatic, tiger, stargazer, oriental)
True lilies belong to the genus Lilium. This group includes the Easter lily, Asiatic lily, tiger lily, stargazer lily, and oriental lily, the large, showy, often intensely fragrant blooms sold in spring bouquets and Easter arrangements.
In cats, every part of these plants, including the pollen and even the vase water, can cause acute kidney failure. In dogs, that mechanism does not appear to operate. A dog that nibbles a Lilium petal or leaf is most likely to show mild gastrointestinal signs: a bit of drooling, maybe vomiting or loose stool from the irritation of eating something it should not have. Veterinary references list these true lilies among the lilies that are nontoxic to dogs in the organ-damage sense.
This is the single biggest point of confusion we see. If you have a dog and a cat, the lily that threatens your cat’s life is, for your dog, mostly a stomachache. Both facts are true at once.
Daylilies (Hemerocallis)
Daylilies (Hemerocallis species) are not true lilies botanically, but they carry the same split reputation. They are a severe kidney threat to cats. The ASPCA notes daylilies “can cause severe kidney injury” in cats and points out they are more common in outdoor beds than bouquets, since each bloom lasts only about a day.
For dogs, daylilies fall in the same nontoxic-but-not-a-snack category as true lilies. Expect mild stomach upset from a curious dog, not the emergency a cat would face.
Peruvian lily (Alstroemeria)
The Peruvian lily (Alstroemeria) looks like a smaller true lily and shows up constantly in mixed bouquets. The ASPCA describes it as a plant that “may cause some stomach upset (vomiting, diarrhea)” but is “not expected to cause life-threatening injury to any organs,” in cats or dogs.
This is the gentlest of the bunch. If your dog grabbed a Peruvian lily stem out of a grocery-store bouquet, the realistic outcome is a queasy hour or two, not a crisis. Still worth a call to your vet if symptoms are more than mild, but this is not the plant that ruins a weekend.
The lilies that are genuinely dangerous to dogs
Now the part that actually matters for dog owners. None of these are true lilies. They borrow the name, and they are where the real risk lives.
Lily of the valley (the most dangerous)
Lily of the valley (Convallaria majalis) is the lily a dog owner should respect most. Those small, white, bell-shaped spring flowers contain cardiac glycosides, also called cardenolides, the same class of heart-acting compounds found in foxglove.
Pet Poison Helpline lists lily of the valley as toxic to dogs, with ingestion causing gastrointestinal distress plus, in more serious cases, “changes in heart rate and rhythm, weakness, and seizures.” PetMD’s veterinarian-authored guide is blunter about the worst case: vomiting, diarrhea, a slowed heart rate, severe arrhythmias, seizures, and in severe cases death. Every part of the plant carries the toxin: leaves, flowers, and roots.
This is not a mild-GI plant. If your dog ate lily of the valley, treat it as an emergency and call ASPCA Animal Poison Control (888-426-4435) or Pet Poison Helpline (855-764-7661) right away.
Glory lily, flame lily, gloriosa (the other serious one)
The glory lily (Gloriosa superba), also sold as flame lily or fire lily for its curling, flame-shaped petals, is the second plant to keep out of a dog’s reach entirely. Its toxin is colchicine, a compound that interferes with rapidly dividing cells.
The ASPCA’s toxic-plant database lists the Gloriosa lily as toxic to dogs, with clinical signs including salivation, bloody vomiting, bloody diarrhea, shock, kidney failure, liver damage, and bone marrow suppression. The tubers hold the most concentrated colchicine. This is an uncommon ornamental in most homes, but if you grow one, a dog has no business near it.
Peace lily and calla lily (painful, rarely serious)
Peace lily (Spathiphyllum) and calla lily (Zantedeschia) share a different toxin from everything above: insoluble calcium oxalate crystals. When a dog chews the plant, those microscopic crystals embed in the soft tissue of the mouth and throat and cause immediate, intense irritation.
The result is dramatic to watch but usually not dangerous: pawing at the mouth, drooling, oral pain, and sometimes vomiting or trouble swallowing. The pain itself tends to stop most dogs from eating enough to cause a bigger problem. Serious airway swelling is possible but rare. We cover the same mechanism in our guide to whether peace lilies are toxic to cats; the chemistry is identical across species. For the dog-specific details, see our full guide on whether peace lilies are toxic to dogs.
One accuracy note, because a major pet brand gets this wrong in print: calcium oxalate crystals are not cardiac glycosides. Peace and calla lilies irritate the mouth; lily of the valley affects the heart. Different toxins, different plants, different responses. Do not let a mislabeled symptom list send you down the wrong path in an emergency.
Prairie lily and rain lily (bulbs are the catch)
Prairie lily, also called rain lily (Zephyranthes), is a smaller bulb plant that can cause mild to severe gastrointestinal upset in dogs, with the bulb being the most toxic part. A dog that digs up and eats the bulbs can get a worse stomachache than one that nibbles a flower. This is the same pattern seen in many bulb plants: the concentrated underground storage organ packs more irritant than the leaves above.
Why true lilies devastate cats but mostly spare dogs
This is the question behind every worried search, so it deserves a real answer. True lilies and daylilies contain a substance that is toxic to the kidneys of cats specifically. A cat that ingests even a small amount, or grooms pollen off its fur, can develop acute kidney failure that becomes fatal if treatment is delayed beyond roughly 18 hours.
Dogs do not show that same kidney response. The exact reason the toxin targets feline kidneys and not canine ones is still not fully understood in veterinary toxicology, which is itself worth saying plainly rather than papering over. What is well established is the outcome: the lily that can kill a cat in a day typically gives a dog a stomachache.
If you live with both species, this is the practical takeaway. A bouquet of Asiatic lilies is a genuine emergency risk for your cat and a minor risk for your dog. The reverse is true for lily of the valley, which threatens both. For the full cat side of this, see our detailed guide on whether lilies are toxic to cats, which covers the true-lily kidney emergency in depth.
Symptoms of lily poisoning in dogs
Signs usually appear within about 2 hours of a dog eating a lily, though timing varies with the plant and the amount. What you see depends on which lily was involved.
Mild stomach upset (true lilies, daylily, Peruvian lily, prairie lily):
- Drooling
- Vomiting
- Diarrhea
- Reduced appetite or mild lethargy
Mouth and throat irritation (peace lily, calla lily):
- Pawing at the face or mouth
- Heavy drooling
- Oral pain, difficulty swallowing
- Vomiting
Serious, organ-level signs (lily of the valley, glory lily):
- Vomiting and diarrhea, sometimes bloody
- Irregular or slowed heart rate, weakness, collapse (lily of the valley)
- Seizures
- Signs of kidney or liver trouble, such as increased or decreased urination, that may develop over hours to days (glory lily)
If you do not know which lily your dog ate, watch for the most serious signs and act as if it could be one of the dangerous ones until a professional tells you otherwise.
What to do if your dog ate a lily
Stay calm and work the steps. Most lily ingestions in dogs end fine, and panic slows down the parts that actually help.
- Identify the plant if you can. Take a photo of the lily, and grab a leaf or the plant tag. Knowing whether it is an Easter lily (mild for dogs) or lily of the valley (serious) changes everything about what happens next.
- Remove any plant material from your dog’s mouth and clear the rest out of reach so a second helping is not possible.
- Call a professional right away. For the dangerous lilies, or any time you are unsure, call your veterinarian, ASPCA Animal Poison Control (888-426-4435), or Pet Poison Helpline (855-764-7661). The poison control lines are staffed around the clock by toxicology experts.
- Do not induce vomiting on your own initiative. PetMD notes a vet may sometimes recommend it, but only at a professionally prescribed dose and not for every case. Call first and let them direct you.
- Watch the clock and the symptoms. Note when the ingestion happened and what signs appear. For lily of the valley especially, delays raise the risk, so do not adopt a wait-and-see approach with that plant.
At the clinic, treatment depends on the lily and the timing. It may include induced vomiting, activated charcoal to bind the toxin, IV fluids, anti-nausea medication, and, for the cardiac or organ-level toxins, heart monitoring and supportive care. The earlier you call, the simpler the visit usually is.
Is it the smell or the pollen? What actually puts a dog at risk
A surprising number of searches ask whether a dog can be poisoned by smelling lilies or brushing against them. The short answer is reassuring: for dogs, the route of harm is eating the plant, not sniffing it.
The pollen worry comes from the cat world, and it is real there. A cat brushes against a lily, gets pollen on its coat, grooms the pollen off, and swallows a kidney-toxic dose without ever biting the flower. Dogs do not groom that way, and the true-lily toxin does not threaten their kidneys regardless. A dog that sniffs a bouquet is not absorbing a dangerous dose through its nose.
Contact is also low-risk. If sap or pollen lands on your dog’s coat, wipe it off with a damp cloth so the dog does not lick it later, and rinse any plant sap off skin. The thing to actually monitor is chewing. A dog that bites into a stem, leaf, bulb, or fallen petal is the dog that needs your attention, especially with the dangerous lilies.
How to keep dogs safe around lilies (what to skip)
You do not have to ban flowers from your home. You have to be specific about which ones and where.
Skip these plants entirely if you have a dog:
- Lily of the valley, indoors or in the garden. The heart toxin is not worth the risk, and it spreads readily outdoors.
- Glory, flame, or gloriosa lily. Beautiful, genuinely dangerous, and easy to live without.
Keep, but place thoughtfully:
- Cut true lilies, daylilies, Peruvian lilies in bouquets up high, away from counter-surfing dogs, and sweep up dropped petals and pollen promptly. Mild for dogs, but no reason to invite a stomachache.
- Peace lily and calla lily as houseplants on shelves or plant stands a dog cannot reach. The mouth pain they cause is the deterrent, but prevention beats a drooling, miserable dog.
Skip the panic, too. If your dog sniffed an Easter lily or ate a single Peruvian lily petal, you are not facing the cat-style emergency the internet warned you about. Watch for stomach upset, call your vet if it is more than mild, and move on.
If you want flowers you do not have to think about at all, our roundup of cat-safe flowers verified against the ASPCA list doubles as a dog-friendly starting point, since most of those picks are non-toxic across species. And for the holidays, our guide on whether poinsettias are poisonous to dogs tackles another over-hyped plant the same calibrated way.
Frequently asked questions
Is it okay for dogs to smell lilies?
Yes. Smelling a lily does not poison a dog. Unlike the pollen risk that threatens cats, who ingest it while grooming it off their fur, a dog’s danger comes almost entirely from eating the plant. A dog that sniffs a bouquet and walks away is fine. Watch the dog that chews a stem, leaf, or fallen petal.
Can I have lilies in the house if I have a dog?
For most cut lilies (Easter, Asiatic, tiger, stargazer, oriental, daylily), yes, with normal precautions: keep arrangements out of reach and sweep up dropped petals. The two you should keep out of a dog’s home entirely are lily of the valley and glory (gloriosa) lily, which can affect the heart and other organs. Peace and calla lilies are safe to own but cause painful mouth irritation if chewed.
What should I do if my dog brushed up against a lily?
Brushing against a lily is not dangerous to a dog the way ingestion is. If sap or pollen got on the coat, wipe it off with a damp cloth so the dog does not lick it during grooming, and rinse any sap off skin. Watch for mouth pawing or drooling only if the dog actually chewed the plant. Contact alone almost never requires treatment.
What is the most poisonous lily to dogs?
Lily of the valley (Convallaria majalis), which contains cardiac glycosides that can cause vomiting, a dangerously irregular heartbeat, and seizures. Glory lily (Gloriosa superba), which contains colchicine, is the other genuinely serious one and can cause kidney failure, liver damage, and bone marrow suppression. Neither is a true lily.
Are Easter and tiger lilies dangerous to dogs the way they are to cats?
No. True lilies (Lilium species like Easter and tiger lilies) and daylilies cause fatal kidney failure in cats, but veterinary sources classify them as nontoxic to dogs. A dog that eats one usually gets mild stomach upset, not kidney damage. The lethal cat risk does not carry over to dogs.
The bottom line
You can now look at any lily and know which conversation you are having. If your dog ate an Easter lily, an Asiatic lily, a daylily, or a Peruvian lily, you are watching for a stomachache, not a kidney emergency. If your dog ate lily of the valley or a glory lily, you are calling poison control now. And if it was a peace or calla lily, you are soothing a sore mouth and keeping the plant up higher next time. That distinction, the one most pet content blurs, is the difference between a calm evening and a panicked drive to the ER.
Emergency numbers, save them now: ASPCA Animal Poison Control 888-426-4435 and Pet Poison Helpline 855-764-7661. Both are staffed 24/7 by veterinary toxicology experts. A consultation fee may apply, and it is worth it.
Sources: ASPCA, Which Lilies Are Toxic to Pets? | ASPCA Toxic Plants, Gloriosa Lily | PetMD, Are Lilies Poisonous to Dogs? (Laci Schaible, DVM) | Purina, Are Lilies Toxic to Dogs? | Pet Poison Helpline, Lily of the Valley
