What should I do if my cat ate Orange Day Lily?

Wipe off any pollen on your cat's fur, deny access to the plant and any vase water, and bring a sample of the plant with you to the vet. Outcome depends almost entirely on aggressive IV fluid therapy started early — don't stop to attempt home decontamination. Call immediately — there is no safe waiting period. Even suspected exposure (pollen on fur, drinking from a vase, chewing a leaf) is grounds for an emergency vet visit or a call to ASPCA Poison Control (888-426-4435).

What should I do if my dog ate Orange Day Lily?

Call your vet if vomiting or diarrhea persist beyond 12 hours, if your dog ate a large quantity, or if you see signs of dehydration (sunken eyes, tacky gums, refusal to drink).

Orange Day Lily — (c) Oleg Kosterin, some rights reserved (CC BY), uploaded by Oleg Kosterin — Photo by (c) Oleg Kosterin, some rights reserved (CC BY), uploaded by Oleg KosteriniNaturalistCC BY

Photo by (c) Oleg Kosterin, some rights reserved (CC BY), uploaded by Oleg KosteriniNaturalistCC BY

Pet safety reference

Orange Day Lily

Q: Is Orange Day Lily safe for cats?

Orange Day Lily is potentially toxic to cats. Ingestion of any part of the plant can be fatal to cats. If ingestion is suspected, contact a veterinarian or emergency animal poison control immediately.

Q: Is Orange Day Lily safe for dogs?

Orange Day Lily has uncertain toxicity for dogs. While not listed as toxic to dogs by the ASPCA, ingestion of plant material can cause stomach upset. Consult your veterinarian if your dog shows signs of illness.

Hemerocallis graminea

The Orange Day Lily is a perennial flowering plant known for its vibrant, trumpet-shaped blooms. While popular in gardens, it is highly dangerous to cats if ingested.

Check a list

Grass-leaved DaylilyHemerocallis gramineaOrange Day Lily

Light: Full sun to partial shade
Habit: Clumping perennial
Care: Low

Safety status

Cats

Potentially toxic

Consulted references classify the plant as toxic or irritating for that pet type.

Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.

Sources

ASPCA Toxic Plant List

Dogs

Uncertain

Identity or evidence quality is not strong enough for a firm answer.

Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.

Sources

ASPCA Toxic Plant List

If a pet has chewed or swallowed plant material and is showing symptoms, contact a veterinarian or poison resource immediately. This product is for structured reference, not diagnosis.

Cats — concern notes

Common signs

Vomiting, lethargy, loss of appetite, and potential acute kidney failure.

Escalation note

Ingestion of any part of the plant can be fatal to cats. If ingestion is suspected, contact a veterinarian or emergency animal poison control immediately.

Dogs — concern notes

Common signs

Mild gastrointestinal upset such as vomiting or diarrhea may occur if ingested.

Escalation note

While not listed as toxic to dogs by the ASPCA, ingestion of plant material can cause stomach upset. Consult your veterinarian if your dog shows signs of illness.

Safer alternatives

No hand-picked alternatives for this plant yet. You can still pick your own using the Compare button on any other plant.

Source evidence

ASPCA Toxic Plant List

toxicology · 99% reliability

Open source

Day lilies are considered highly toxic to cats, causing kidney failure.

Kew Plants of the World Online

botanical · 95% reliability

Open source

Accepted botanical nomenclature for Hemerocallis graminea.

cats safety page My cat ate Orange Day Lily dogs safety page

Often compared with

Orange Day Lily vs Daylily

Same safety verdict

Other plants with the same verdict

Lily

Lilium species

True lilies are highly toxic to cats, causing severe kidney damage even with minimal exposure. While data for dogs is less definitive, they should still be kept away from all parts of the plant.

Potentially toxic for cats.

Uncertain for dogs.

Asiatic Lily

Lilium asiatica

Asian lilies are popular ornamental flowering plants known for their vibrant blooms, but they pose a significant health risk to certain pets. Ingestion of any part of the plant can lead to severe systemic issues.

Potentially toxic for cats.

Uncertain for dogs.

Catnip

Nepeta cataria

Catnip is a member of the mint family known for its stimulating effects on many cats, though ingestion of large quantities can cause gastrointestinal distress. It is generally considered safe for dogs, though it is not a standard part of their diet.

Potentially toxic for cats.

Uncertain for dogs.

Easter Lily

Lilium longiflorum

The Easter Lily is a bulbous perennial known for its large, fragrant, trumpet-shaped white flowers. It is highly significant in veterinary medicine due to its extreme toxicity to cats.

Potentially toxic for cats.

Uncertain for dogs.

Same growing conditions

Plants for the same room

Meadow Buttercup

Ranunculus acris

Ranunculus acris is a perennial herbaceous plant known for its bright yellow flowers and presence in meadows. It contains compounds that can cause irritation upon contact or ingestion.

Potentially toxic for cats & dogs.

St. John's Wort

Hypericum perforatum

Klamath Weed is a perennial flowering plant known for its bright yellow blooms and medicinal history, but it contains compounds that can cause significant health issues if ingested by pets. It is widely recognized as a toxic plant that requires careful management in households with animals.

Potentially toxic for cats & dogs.

Black Nightshade

Solanum nigrum

Black Nightshade is an herbaceous plant in the Solanaceae family containing solanine alkaloids that are harmful if ingested. It is widely considered a weed and is not typically cultivated as an indoor houseplant.

Potentially toxic for cats & dogs.

China Aster

Callistephus chinensis

China Aster is a popular annual flowering plant known for its daisy-like blooms and vibrant colors. It is considered non-toxic to household pets, though ingestion of large amounts of plant material may cause minor digestive discomfort.

Generally safe for cats & dogs.