Is it toxic?

Is it safe for your pet?

Toxicity of 731 genera and 58 species for 12 animal groups and children – based on ASPCA, Cornell and poison centres.

Who lives with you?

For your selected petsMildly toxic

Fagaceae · genus-level data

Cork oak

Quercus suber · data for genus Quercus

Species page Quercus in the catalog

Cat mild

Dog mild

Horse moderate

Pet bird no data

Rabbit, rodent no data

Cattle severe

Sheep, goat moderate

Pig safe

Poultry no data

Tortoise, herbivorous reptile no data

Aquarium fish no data

Human (child) mild

Toxic principle

tannins (gallotannins)

Dangerous parts

nut, acorn, leaf

Possible symptoms

vomiting, diarrhoeakidney damage

💡 Acorns and young leaves cause kidney failure in quantity (cattle, horses). Pigs tolerate them.

🚑 What to do if eaten?

Remove the plant, rinse the mouth with water; do not induce vomiting yourself.
Note what, how much and when – take a photo of the plant.
Call your vet (for children: poison centre) before symptoms appear – especially at level 2–3.

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Source: ASPCA, Cornell · For information only – not a substitute for veterinary or medical advice.

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Safe choices

Curated lists

Cat & dog-safe houseplants

Non-toxic to cats and dogs according to the ASPCA.

Horse pasture dangers

Common toxic weeds, trees and hedges around paddocks – also in hay.

Tortoise-safe edible plants

For a varied diet – in moderation and pesticide-free.

Bird-safe plants

For aviaries and bird rooms – but never avocado, oleander, yew or azalea!

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⚠️ This information is for guidance only, may be incomplete despite our care and is not a substitute for veterinary or medical advice. If you suspect poisoning, call your vet immediately – for children call emergency services (112/911) or a poison centre.