Plums are best avoided. The soft flesh of a ripe plum is not poisonous to dogs, but the large stone in the middle is a real hazard: it can cause choking or a dangerous blockage, and the stone, stalk and leaves all contain a compound that releases cyanide. Since the flesh offers nothing your dog cannot get more safely from another fruit, I would leave plums off the treat list altogether.
Stone fruits come up a lot in summer with the owners who visit the salon here in York, usually when there is a plum tree in the garden dropping fruit everywhere. This is one where being clear about the risk matters more than being generous with treats. Here is the picture.
Why plums are risky for dogs
The sweet flesh is not really the issue. The trouble is the stone and the rest of the plant:
- The stone (pit), stalk and leaves contain amygdalin, a cyanogenic compound that can release cyanide when chewed or digested.
- The stone is large and hard. It is a genuine choking risk and can cause a serious intestinal blockage if swallowed, particularly in smaller dogs.
- The stone has sharp edges when cracked, which can injure the mouth or gut.
Put those together and plums land firmly in the "not worth it" pile for me. There are far simpler treats.
What if my dog eats a plum?
Try not to panic. A little plum flesh is not toxic, and a single swallowed stone will often pass without incident. The main worries are:
- Choking or a blockage from the stone, especially in small and medium dogs.
- Cyanide poisoning, which generally only becomes a concern if a dog cracks and eats several stones.
Signs to watch for include drooling, vomiting, difficulty breathing, bright red gums, a bloated or painful tummy, straining to pass stool, or obvious distress. Any of these, or several plums eaten at once, means you should act quickly.
> Vet note: If your dog has swallowed a plum stone and seems unwell, or you cannot be sure how many stones they had, phone your vet without delay. You can also call Animal PoisonLine on 01202 509000, a paid UK service that helps you work out whether a vet visit is needed.
Safer treats to reach for instead
If you fancy giving a fruity treat, pick something without a big hidden stone:
- Blueberries, easy to serve whole.
- Strawberries or raspberries, in small amounts.
- Small pieces of apple or pear, with the core and pips removed.
Most vets suggest that treats, fruit included, stay under 10% of your dog's daily calories. The PDSA guidance on safe fruit and veg for dogs is a sensible page to check before offering anything new.
Frequently asked questions
Is plum flesh toxic to dogs?
The flesh itself is not toxic, but I still would not offer it. It is difficult to separate the flesh from the stone, and the stone brings a real risk of choking, blockage and cyanide, which is not worth it for a treat with no special benefit.
What should I do if my dog swallows a plum stone?
Keep a close watch. One stone often passes on its own, but it can cause a blockage or choking. Call your vet if your dog gags, vomits, goes off food, strains to toilet or seems in pain.
Are plum trees dangerous for dogs?
The stones, stalks and leaves all contain the cyanide-releasing compound, so a plum tree dropping fruit can be a hazard. Clear fallen plums and discourage your dog from foraging under the tree.
Can dogs have plum jam or dried plums (prunes)?
No. Jam is loaded with sugar, and prunes are concentrated, high in sugar and can cause an upset tummy. Neither is a good idea.
This isn't veterinary advice
We're professional dog groomers, not vets, so please treat this as friendly general guidance. If you're worried about your dog, or before acting on anything here, speak to your local vet. In an emergency, contact your vet or nearest out-of-hours clinic.
Fluffs is a professional dog grooming salon in Wigginton, York, offering one-to-one grooming for dogs of every breed and coat type across Haxby, Strensall, Huntington, New Earswick and the surrounding villages. We would always rather point you towards a safe snack than a risky one. Get in touch with the team.