Petunias and a bulldog looking at the flower pot

Are Petunias Poisonous To Dogs?

Petunias have a reputation among gardeners as one of the most robust flowers around, which is why they’re so popular in gardens all over the world. They are also known to have long-lasting blooms. But should we plant them when we have a dog?

Petunias are not poisonous to dogs, but they will cause an upset stomach if overeaten. If you have a dog that likes to dig in the garden or chew on, we recommend planting petunias in hanging baskets or window boxes out of reach from your dog.

Why do dogs eat petunias?

Dogs will typically eat petunias because they’re bored or just dogs and don’t know better. If your dog eats one or two petunia flowers, it’s unlikely you’ll need to worry about it unless they continue to do so for an extended period.

  • Get rid of intestinal parasites
  • Dietary deficiency
  • Enjoys the taste
  • Boredom

Are petunias suitable for my dog?

Yes, petunias are not poisonous to dogs. However, if they’re eaten excessively, it can affect their stomachs, so you need to understand your dog better and judge whether your dog will become an excessive chewer of the flowers.

Shouldn’t dogs know not to eat petunias?

Dogs use their intuitive knowledge of poisonous plants to avoid a potential threat. However, not all dogs are smart enough to resist the temptation of flowers!

Are petunia leaves poisonous to dogs?

The petunia leaves aren’t poisonous or harmful for dogs, but they can cause an upset stomach if eaten too often. If your dog or puppy is known to chew garden plants, we recommend planting petunias in hanging baskets or window boxes where they can’t reach.

Petunias Toxicity

Let’s not forget that your dog will have to eat these excessively. However, depending on your dog’s size, age, and weight, the amount does play a role. 


  • Vomiting
  • Diarrhoea
  • Lethargic
  • Excessive thirst
  • Loss of appetite

If your dog displays continued sickness over a long period, then you should consult a veterinarian.

About Petunias

Petunia is a genus of 20 species that originated in South America. The famous flower came from the French, which took it from Tupi-Guarani word meaning “tobacco.”

How long do petunias last?

Petunias bloom throughout the autumn and early winter months. However, many factors will prolong the life of petunia and shorten the life, such as where you grow them, what type of soil you use.

Petunias love these type of soils:

  • Clay
  • Loamy
  • Sandy

Do petunias grow each year?

Yes, they do grow each year. However, the plant will die entirely after four years. So, with one petunia plant, you can get around four blooms maximum. 

When should I plant Petunias?

Petunias are an easy way to add colour and texture to your garden. You can sow petunias indoors or outdoors during the early springtime when warm enough for them to be ready for late spring-summer bloom.

Should Petunias be in the shade or direct sunlight?

Petunias require a good amount of sun for at least 6 hours. The best time to give them the sun is in the early morning. They love basking in the sunlight, which keeps them happy.

Petunia Care Tips:

  • Petunias are tough enough to handle intense heat or cold. However, they just won’t do well with any heavy frosts. 
  • They grow well in full sun and partial shade but do best when they get around six hours of the early morning sun. 
  • Good soil will make them last.
  • Don’t overwater a petunia. Instead, use a water drip for best results.
  • Leave six to eight inches between so they have enough room to grow.
  • Fertilize them with kelp, fish or slow-release fertilizer to give them an extra added boost
  • Don’t overwater, just a tiny amount each time or they will get root rot and die.
  • If you get more foliage than flowers, then you need to add fertilizer to the soil. Pertuinas love fertilizer, and they will flourish.

What you can do: (Dog Owner)

  • Train your dog to keep away from all flowers this will cut down on the possibility of them nibbling poisonous plants in the future.
  • Hanging them in baskets or planting in window boxes.

Recommended read:

Petunia Flower seed pack

Beautiful Petunia Flower Seeds


We know that petunias are not poisonous to dogs. However, if your dog is a known excessive digger and plant muncher, it would be best to avoid panting them with their reach and use a window box or a hanging basket instead. If you ever notice your dog falling sick when returning from the garden and you see some missing flower heads, then keep a watching eye on them and call a vet if vomiting problems persist.

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