Summer Hyacinth — no rights reserved, uploaded by Peter Warren
Photo by no rights reserved, uploaded by Peter WarreniNaturalistCC0
Pet safety reference

Summer Hyacinth

Galtonia candicans

Summer Hyacinth is a bulbous perennial known for its tall, fragrant, bell-shaped white flowers that bloom in late summer. It is considered non-toxic to pets, though ingestion of any plant material can occasionally cause minor digestive upset.

Cape HyacinthGaltonia candicansGaltonia spp.
Light
Full sun to partial shade
Habit
Upright bulbous perennial
Care
Low

Safety status

Cats & Dogs

Generally safe

Consulted references do not classify the plant as toxic for that pet type, while still allowing for mild GI upset if large amounts are chewed.

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

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.

Catsconcern notes

Common signs

No specific toxicity symptoms are expected, though chewing or swallowing plant material may still cause mild stomach upset.

Escalation note

This plant is listed by ASPCA as non-toxic for this pet. Monitor for digestive upset after large ingestion and contact a veterinarian if symptoms persist.

Dogsconcern notes

Common signs

No specific toxicity symptoms are expected, though chewing or swallowing plant material may still cause mild stomach upset.

Escalation note

This plant is listed by ASPCA as non-toxic for this pet. Monitor for digestive upset after large ingestion and contact a veterinarian if symptoms persist.

Source evidence

ASPCA Toxic and Non-Toxic Plant List

toxicology · 99% reliability

Open source

Summer Hyacinth is listed as non-toxic to both cats and dogs.

Kew Plants of the World Online: Galtonia candicans

botanical · 95% reliability

Open source

Accepted botanical classification for the species commonly known as Summer Hyacinth.

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Questions about Summer Hyacinth

Is Summer Hyacinth toxic to cats?

Summer Hyacinth (Galtonia candicans) is non-toxic to cats according to ASPCA records. It is not expected to cause poisoning, though as with any plant material, chewing or swallowing it may trigger mild stomach upset.

What happens if my cat eats Summer Hyacinth?

No specific toxicity symptoms are expected. At most, ingesting plant material — especially in larger amounts — may cause mild digestive upset such as vomiting or loose stools. Serious illness is not anticipated.

How much Summer Hyacinth would make a cat sick?

There is no documented toxic dose because the plant is classified as non-toxic. That said, non-toxic does not mean unlimited quantities are harmless — a cat that eats a large amount of any plant may develop GI upset, so it is reasonable to discourage snacking on it.

What should I do if my cat ate Summer Hyacinth?

Monitor your cat for signs of digestive upset such as vomiting, drooling, or lethargy. Because the plant is non-toxic, no emergency treatment is expected to be needed, but if symptoms appear or persist, contact your veterinarian for guidance.

Is Summer Hyacinth toxic to dogs?

Summer Hyacinth (Galtonia candicans) is non-toxic to dogs according to ASPCA data. It is not expected to cause serious harm if a dog chews or swallows part of the plant.

What happens if my dog eats Summer Hyacinth?

No specific toxicity symptoms are expected. Chewing or swallowing plant material may occasionally cause mild stomach upset, but this plant is not associated with serious poisoning in dogs.

What should I do if my dog ate Summer Hyacinth?

Because Summer Hyacinth is non-toxic, no emergency treatment is needed, but monitor your dog for signs of digestive upset such as vomiting or diarrhea. If symptoms persist or your dog ate a very large amount, contact your veterinarian.

Can a dog eat a lot of Summer Hyacinth without getting sick?

Non-toxic does not mean unlimited — large ingestions of any plant material can cause mild GI upset in dogs. Summer Hyacinth is not expected to be dangerous, but keep portions incidental and watch for vomiting or lethargy if your dog has eaten a significant amount.

Same safety verdict

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