Daylily — (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
dog safety reference

Is Daylily safe for dogs?

Hemerocallis spp.

Day lilies are popular garden perennials known for their vibrant, trumpet-shaped blooms. While beautiful, they are highly dangerous to cats and should be kept strictly out of reach.

DaylilyHemerocallisHemerocallis spp.Tiger Lily
Light
Full sun to partial shade
Habit
Clumping herbaceous perennial
Care
Low

Safety status

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.

What this means for your dog

Daylilies are dramatically more dangerous to cats than to dogs. ASPCA's Hemerocallis entry names cats as the affected species — dogs are not flagged for daylily toxicity, and no daylily-specific syndrome is documented for them.

Sources: ASPCA (cat-specific entry; no dog signs documented).

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.

Dogsconcern 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 any non-food plant material can cause digestive upset. Monitor your pet and consult a veterinarian if symptoms persist.

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Source evidence

Cats & dogs pagecats page

Questions about Daylily

Are daylilies toxic to dogs?

Daylilies are not listed as toxic to dogs by the ASPCA, though their classification remains uncertain. Unlike cats, for whom daylilies are highly dangerous, dogs are not known to face serious toxicity from this plant.

What happens if my dog eats a daylily?

Mild gastrointestinal upset such as vomiting or diarrhea may occur if your dog ingests daylily plant material. Specific toxic effects beyond GI irritation are not well documented for dogs.

What should I do if my dog ate part of a daylily?

Monitor your dog for vomiting, diarrhea, or lethargy. If symptoms appear or persist, contact your veterinarian or the ASPCA Animal Poison Control Center at (888) 426-4435 for guidance.

Is there a difference in daylily danger between cats and dogs?

Yes — daylilies are considered highly dangerous to cats, capable of causing kidney failure, but they are not classified as toxic to dogs by the ASPCA. Dogs may experience mild digestive upset at most, though this distinction is based on limited data and the classification remains uncertain.

Same dog verdict

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