Pet safety
Is Burr Oaktoxic to cats & dogs?
Quercus macrocarpa
Quick verdict — at a glance
- Toxic to cats?
- Yes — toxic
- Toxic to dogs?
- Yes — toxic
- ASPCA classification
- Toxic to pets · botanical name Quercus macrocarpa
Is burr oak safe for cats and dogs?
No — burr oak is toxic to cats and dogs. Keep it well away from any pet that chews plants; reactions can be significant. This classification follows the ASPCA Toxic and Non-Toxic Plant List, the most widely used reference for companion-animal plant safety in the US and the standard most UK vets cite as well. Oak (Quercus) is listed by the ASPCA as toxic to dogs, cats and horses. The toxic principle is tannins (gallotannic and tannic acid), concentrated in acorns, buds and young leaves. Ingestion causes vomiting, diarrhoea (sometimes bloody), lethargy, abdominal pain and inappetence; large or repeated ingestion can lead to kidney and liver damage. Whole acorns can also cause GI obstruction. Keep fallen acorns away from pets and livestock.
| Pet | Toxic? | Per ASPCA |
|---|---|---|
| Cats | Yes | Toxic to pets |
| Dogs | Yes | Toxic to pets |
What happens if a pet eats burr oak?
Oak (Quercus) is listed by the ASPCA as toxic to dogs, cats and horses. The toxic principle is tannins (gallotannic and tannic acid), concentrated in acorns, buds and young leaves. Ingestion causes vomiting, diarrhoea (sometimes bloody), lethargy, abdominal pain and inappetence; large or repeated ingestion can lead to kidney and liver damage. Whole acorns can also cause GI obstruction. Keep fallen acorns away from pets and livestock. Signs usually appear soon after chewing rather than hours later. If you see drooling, pawing at the mouth, head-shaking, vomiting, loss of appetite, or unusual lethargy after your pet has had access to burr oak, treat it as a suspected ingestion and act on the steps below.
What to do if your pet ate burr oak
- Remove any plant material from your pet's mouth and move burr oak out of reach.
- Note how much was eaten and when, and watch for drooling, vomiting, or lethargy.
- Do not induce vomiting unless a vet or poison-control specialist instructs you to.
- Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 and follow their advice.
- Bring a leaf or photo of burr oak to the appointment so it can be treated correctly.
This page is general guidance, not veterinary advice. Pets vary, and a reaction may be to soil, fertiliser, or pesticide rather than the plant. If you are worried, always contact a vet or the ASPCA Animal Poison Control Center on (888) 426-4435 — do not wait for symptoms to worsen.
Pet-safe alternatives to burr oak
Want the same look without the risk? These plants are listed as non-toxic to cats and dogs by the ASPCA and have similar care needs:
- Cucumber — non-toxic to cats and dogs (care guide)
- Lettuce — non-toxic to cats and dogs (care guide)
- Bean — non-toxic to cats and dogs (care guide)
- Pea — non-toxic to cats and dogs (care guide)
Burr Oak and pets — frequently asked questions
Is burr oak toxic to cats?
Burr Oak (Quercus macrocarpa) is toxic to cats according to the ASPCA. Oak (Quercus) is listed by the ASPCA as toxic to dogs, cats and horses. The toxic principle is tannins (gallotannic and tannic acid), concentrated in acorns, buds and young leaves. Ingestion causes vomiting, diarrhoea (sometimes bloody), lethargy, abdominal pain and inappetence; large or repeated ingestion can lead to kidney and liver damage. Whole acorns can also cause GI obstruction. Keep fallen acorns away from pets and livestock. Keep it out of reach and contact your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 if your cat chews it.
Is burr oak toxic to dogs?
Per the ASPCA, Burr Oak (Quercus macrocarpa) is toxic to dogs. Dogs often chew more enthusiastically than cats, so a toxic plant like burr oak is best removed from the floor and low shelves entirely.
What happens if my pet eats burr oak?
Oak (Quercus) is listed by the ASPCA as toxic to dogs, cats and horses. The toxic principle is tannins (gallotannic and tannic acid), concentrated in acorns, buds and young leaves. Ingestion causes vomiting, diarrhoea (sometimes bloody), lethargy, abdominal pain and inappetence; large or repeated ingestion can lead to kidney and liver damage. Whole acorns can also cause GI obstruction. Keep fallen acorns away from pets and livestock. Signs usually appear soon after chewing rather than hours later. If you see drooling, pawing at the mouth, head-shaking, vomiting, loss of appetite, or unusual lethargy after your pet has had access to burr oak, treat it as a suspected ingestion and act on the steps below.
What should I do if my cat or dog ate burr oak?
Stay calm. Remove any remaining plant material from your pet's mouth and take the plant away so they cannot eat more. Note roughly how much was eaten and when. Do not make your pet vomit unless a vet or poison-control specialist tells you to. Call your vet or the ASPCA Animal Poison Control Center on (888) 426-4435 (a consultation fee may apply) and follow their advice. Bringing a photo or a leaf of burr oak to the appointment helps the vet treat it correctly.
What are pet-safe alternatives to burr oak?
If you want a similar look without the risk, good non-toxic swaps include cucumber, lettuce, bean, pea. All of these are listed as non-toxic to cats and dogs by the ASPCA, so they suit a home where pets have access to your plants.
Full burr oak care
Pet-safety is one piece of the picture. For light, watering, soil, and troubleshooting, see the complete burr oak care guide, or browse the full pet-safe plant library to check another plant before you buy it.