Are Dogwood Trees Poisonous to Dogs?
Dogwood trees are not poisonous to dogs, but they can cause mild digestive upset if your dog eats a large amount of the berries, leaves, or bark. The American Society for the Prevention of Cruelty to Animals (ASPCA) lists dogwood trees (Cornus species) as non-toxic to dogs. However, because every dog is different, it is still smart to watch your pet around any plant and know the difference between dogwood trees and look-alikes that are truly dangerous.
Are dogwood trees toxic to dogs?
No, dogwood trees are not toxic to dogs. The ASPCA includes several dogwood species on its list of plants that are safe for dogs, cats, and horses. That means you do not need to rush your dog to the vet if they nibble a leaf or chew on a fallen twig. Still, "non-toxic" does not mean "zero risk." Any plant material can cause mild stomach upset, especially if your dog eats a lot of it.
Dogwood trees produce berries that are tempting to dogs because they are bright red or blue. While the berries are not poisonous, they can be a choking hazard for small dogs or cause a blockage if swallowed whole. The seeds inside the berries are small and usually pass through without issue, but large quantities can lead to vomiting or diarrhea. To be safe, teach your dog a "leave it" command and keep the yard clean of fallen berries.
What parts of the dogwood tree could cause problems?
The main concern with dogwood trees is not toxicity but the physical effects of eating too much plant material. Here are the parts that might cause minor trouble if eaten in large amounts:
- Berries: The fleshy fruit is safe, but seeds can cause mild digestive upset if many are eaten. The sugar in the berries may also cause loose stools.
- Leaves and bark: These are high in fiber and can cause vomiting or diarrhea if your dog eats a lot. They are not poisonous, just hard to digest.
- Twigs and branches: Chewing on sticks can splinter and cause mouth injuries or intestinal blockages. This is true for any tree branch, not just dogwood.
If your dog eats a small amount of dogwood, you probably will not see any symptoms. If they eat a large pile of berries or several leaves, watch for mild vomiting, loose stool, or a temporary lack of appetite. These symptoms usually clear up within 24 hours. If they last longer or your dog seems very uncomfortable, call your veterinarian.
What are the symptoms if my dog eats dogwood?
Most dogs will not show any symptoms after eating dogwood. But if your dog is sensitive or eats a lot, you might notice:
- Vomiting – usually one or two times
- Diarrhea – may be watery or contain berry skins
- Drooling – from the taste or mild nausea
- Lethargy – feeling a bit tired from an upset stomach
Severe symptoms like seizures, difficulty breathing, or collapse are not linked to dogwood trees. If your dog shows any of those, it is probably from eating something else entirely. Still, if you are worried, call your vet or a pet poison helpline. Having a basic pet first aid kit on hand is a good idea for any dog owner. Consider adding a dog first aid kit to your home supplies so you are prepared for minor emergencies.
How can I stop my dog from eating dogwood?
Even though dogwood is safe, it is still better to discourage your dog from eating any plant material. Here are practical ways to keep your dog away from dogwood trees:
- Train a strong "leave it" command. Practice with treats so your dog learns to ignore fallen berries and leaves.
- Rake up fallen berries and leaves regularly. Dogs are less likely to eat what is not on the ground.
- Use a pet-safe deterrent spray. Sprays with bitter apple taste can be applied to low-hanging branches or the base of the tree. Try a pet-safe bitter spray to keep your dog from chewing.
- Create a physical barrier. A small decorative fence or ring of rocks around the tree base can keep your dog from getting too close.
- Provide safe chewing alternatives. Give your dog durable chew toys or safe sticks made for dogs (like coffee wood or bully sticks) so they are not tempted to gnaw on live branches.
Are there trees that look like dogwood but are poisonous?
Yes, some trees and shrubs that resemble dogwood are highly toxic to dogs. It is important to tell them apart. The most common dangerous look-alikes include yew, poison sumac, and sometimes holly (though holly has spiny leaves).
Yew (Taxus species) is one of the most poisonous trees to dogs. All parts of yew are toxic, including the red berry-like structures (arils) and the needles. Even a small amount can cause heart problems and death. Yew has flat, needle-like leaves, while dogwood has broad, oval leaves with prominent veins that curve toward the tip.
Poison sumac (Toxicodendron vernix) is not a dogwood, but some people confuse it because of the similar berry clusters. Poison sumac has white berries, while dogwood berries are red or blue. The leaves of poison sumac are smooth-edged, while dogwood leaves have wavy edges. All parts of poison sumac cause severe skin irritation and are toxic if eaten.
Holly (Ilex species) has red berries that look like dogwood berries. Holly leaves are very spiky and tough, and the berries contain saponins that can cause vomiting, diarrhea, and drooling. Holly is moderately toxic, but usually not fatal. The easiest way to tell them apart: dogwood leaves are smooth and pointed, holly leaves have sharp spines on the edges.
How to identify a dogwood tree
To be sure the tree in your yard is a true dogwood, look for these features.
| Feature | Dogwood Tree | Yew (Toxic) | Poison Sumac (Toxic) |
|---|---|---|---|
| Leaves | Broad, oval, edges wavy; veins curve toward the tip | Flat, dark green needles; no broad leaves | Dull green, smooth edges; veins do not curve |
| Berries | Bright red or blue, clustered in groups; fleshy | Red, fleshy cup (aril) with a single hard seed | White or pale green berries hanging in loose clusters |
| Bark | Gray, rough, blocks like alligator skin | Reddish-brown, peeling in thin strips | Grayish, smooth, with raised spots |
| Flowers | Four large white or pink petal-like bracts in spring | Small greenish cones; not showy | Small greenish-yellow clusters |
If you are still unsure, use a plant identification app on your phone. Many free apps will tell you the exact species within seconds. A good tool for this is a plant identification book that you can bring along on walks or keep in your gardening kit.
What to do if your dog eats something from a tree
If you catch your dog eating any plant material and you are not sure what it is, follow these steps:
- Stop your dog from eating more. Take the plant away immediately.
- Identify the plant. Gather a sample of the leaves, berries, and bark. Take a photo if you can.
- Call your veterinarian or a pet poison control center. If the plant is unknown, tell them your dog's size and how much they ate. Having the sample ready helps them identify it.
- Watch for symptoms. Most plant-related issues cause vomiting or diarrhea within a few hours. If your dog becomes weak, has trouble breathing, or has seizures, go to an emergency vet right away.
Checklist for dog owners: Keep a small baggie or container for plant samples. Have your vet's number saved in your phone. Consider adding a pet poison control hotline number too. A simple pet first aid reference card can also be helpful – you can find one inside a quality dog first aid kit.