Are Nasturtium Plants Toxic to Dogs?

Nasturtium plants are not considered toxic to dogs, according to the ASPCA, but they can still cause mild stomach upset if eaten in large amounts. The leaves, flowers, and seeds are safe in small quantities, but the seed pods can pose a choking hazard for smaller breeds. In this article, we will cover everything you need to know about nasturtiums and your dog, including symptoms to watch for and how to create a dog-friendly garden.

What exactly are nasturtium plants?

Nasturtiums are colorful, flowering plants that many gardeners love because they are easy to grow and attract helpful insects. They come in shades of orange, red, yellow, and cream and have round, lily-pad-like leaves. Both the flowers and the leaves are edible for humans and have a peppery, slightly spicy taste similar to watercress. People often add them to salads, use them as garnishes, or even pickle the green seed pods to use like capers.

These plants grow quickly in poor soil and full sun, which makes them a popular choice for hanging baskets, window boxes, and garden borders. But if you share your yard with a dog, you might wonder whether these bright blooms could cause any harm. The short answer is no, but there are a few details worth knowing before you let your pup run wild near your flower beds.

Are nasturtiums toxic to dogs?

The good news is that nasturtiums are not listed as toxic to dogs by the ASPCA (American Society for the Prevention of Cruelty to Animals). That means they do not contain any known poisons that would cause serious illness or organ damage. However, "non-toxic" does not mean "no reaction at all." Many dogs who eat non-toxic plants still get an upset stomach simply because their digestive system is not built to handle large amounts of plant material.

Nasturtiums contain a compound called glucosinolates, which give them their peppery taste. In very high amounts, these compounds can cause mild irritation to the mouth and stomach. But a dog would need to eat a huge pile of leaves and flowers to feel more than just a little queasy. Most dogs who take a nibble will be perfectly fine.

What parts of the nasturtium plant could be a problem for dogs?

While the whole plant is generally safe, a few specific parts deserve extra attention:

• Leaves and flowers – These are the safest parts. They are edible and, in small amounts, should not cause any issues. If your dog eats a few leaves or flowers, you likely will not see any symptoms at all.
• Seed pods – The green, round seed pods that form after the flowers fade can be a choking hazard, especially for small dogs. They are about the size of a pea and fairly firm, so a curious pup could accidentally inhale one or get it stuck in the throat.
• Stems and roots – These parts are also non-toxic but are tougher and harder to digest. Eating large pieces of stem could lead to vomiting or a temporary loss of appetite.

What are the symptoms if a dog eats too much nasturtium?

If your dog eats a large quantity of nasturtium leaves, flowers, or stems, you might notice some mild symptoms. These usually appear within a few hours and go away on their own within 12 to 24 hours. Watch for these signs:

• Drooling more than usual
• Licking lips or smacking mouth
• Vomiting once or twice
• Soft stools or mild diarrhea
• Loss of interest in food for one meal
• A slightly upset or gurgly stomach

These symptoms are generally mild and self-limiting. They are similar to what a human might feel after eating too much spicy food. There is no need to panic unless the symptoms last longer than 24 hours or seem very severe.

How much nasturtium is too much for a dog?

There is no exact number, but a good rule of thumb is that a few nibbles (a leaf or two, a single flower) are perfectly safe for a medium or large dog. For a small dog under 10 pounds, even a whole flower could cause some mild digestive upset simply because their stomach is tiny. If your dog eats a whole plant or a large clump of leaves, you should expect some vomiting or diarrhea. In that case, call your vet for advice.

Size and weight matter a lot here. A 70-pound Labrador can handle much more plant material than a 5-pound Chihuahua. Always use common sense: if your dog ate a lot of any plant, even a "safe" one, it is a good idea to check in with your veterinarian.

What should I do if my dog eats nasturtium?

If you catch your dog snacking on your nasturtium plant, here is a simple step-by-step plan:

1. Stay calm. Remember, this plant is not toxic. Panicking will not help you or your dog.
2. Remove your dog from the area. Take them away from the plant so they do not eat more.
3. Check what they ate. Look at the plant to see how much is missing. If only one flower is gone, you are probably fine. If half the plant is chewed up, pay closer attention.
4. Watch for symptoms. Over the next few hours, keep an eye out for drooling, vomiting, or diarrhea.
5. Offer water. Drinking water can help wash down any peppery bits that might be irritating the mouth or throat.
6. Call your vet if needed. If your dog vomits multiple times, seems very tired, or shows signs of choking (coughing, pawing at the mouth), contact your vet right away.

It is always a smart idea to have a basic pet first aid kit at home. A kit with bandages, antiseptic wipes, a digital thermometer, and a list of emergency numbers can give you peace of mind. You can find one on Amazon for around $20 to $30, and it is useful for all kinds of minor pet emergencies.

Look for a well-reviewed pet first aid kit on Amazon that includes a muzzle, gloves, and a comprehensive guidebook. It is one of those things you hope you never need but will be glad you have.

How can I keep my dog safe around nasturtiums in the garden?

Even though nasturtiums are not poisonous, you still might want to keep your dog from eating them. Here are a few practical tips for a dog-friendly garden:

• Use a low fence or border. A small decorative fence around your flower bed can remind your dog that the garden is off-limits.
• Plant nasturtiums in hanging baskets. This keeps them up high, out of reach of curious noses and mouths.
• Train a "leave it" command. Spend a few minutes each day practicing this command with treats. It can stop your dog from eating all kinds of things in the yard.
• Provide a distraction. Set up a digging pit or a sandbox filled with toys where your dog is allowed to play. They will be less interested in your plants if they have their own special spot.
• Apply a pet-safe taste deterrent. There are sprays that make plants taste bitter to dogs but are harmless to the plant and the pet. A quick spray on your nasturtiums can discourage repeat snacking.

If you want to make your whole garden safer for your dog, consider picking up a dog-friendly gardening guide. Many books list which plants are safe and which ones to avoid, along with tips for designing a yard that both you and your pup will enjoy.

Search Amazon for a dog-friendly garden book to find guides written by veterinarians or horticulturists. They can help you choose plants that are both beautiful and completely safe for your four-legged friend.

Are there safe alternatives to nasturtium for a dog-friendly garden?

If you would rather avoid any risk of stomach upset, or if your dog has a very sensitive stomach, you can replace nasturtiums with other colorful, non-toxic plants. Here are some excellent choices that are known to be safe for dogs:

All of these plants are widely available at garden centers and are considered safe for dogs by the ASPCA. They add color and variety to your garden without any worry. If you decide to keep your nasturtiums, simply plant them in an area your dog cannot easily reach.

Can dogs eat nasturtium flowers or leaves on purpose?

Technically, yes, dogs can eat nasturtium flowers and leaves in small amounts, but there is no real reason to feed them on purpose. Unlike humans, dogs do not need the peppery flavor or the vitamins in nasturtiums. They get all the nutrition they need from their regular dog food. While a nibble here and there will not hurt, you do not need to add nasturtiums to your dog's bowl.

Some pet owners like to offer fresh, dog-safe herbs like parsley or basil as a small treat. Those are a better choice because they are more familiar to a dog's digestive system and less likely to cause any reaction. Stick to the plants that are known to be beneficial, and let your nasturtiums stay for decoration only.

What do veterinarians say about nasturtium and dogs?

Veterinarians generally agree that nasturtiums are low-risk plants when it comes to dogs. Most vets will tell you that the biggest concern with any garden plant is not the plant itself, but what might be on it. Pesticides, herbicides, and fertilizers used on garden plants can be far more dangerous than the plant material. If your dog eats a nasturtium that has been sprayed with chemicals, the reaction could be much more serious than a simple upset stomach.

To be safe, always wash any plants you bring into the yard, or better yet, grow your nasturtiums organically without chemical sprays. If you use any products on your garden, check the label to make sure they are safe for pets. Many brands now offer pet-safe formulas that break down quickly and do not leave harmful residues.

It is also a good idea to keep a list of the plants in your yard somewhere handy. If your dog ever

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