If you own a dog you will probably already know which plants are on this list, but if not you still need to be aware in case friends bring their dog to visit. Luckily some houseplants are less poisonous than others so this list of thirty-four gives you scope to choose the least toxic. I found this information on the Balcony Garden website.

There are poisonous houseplants for dogs and cats. Some are mildly poisonous and some are fatal. It is better to know about them if you own a pet and here we?ve listed 34?plants toxic to dogs.

The purpose of this article is not to discourage you from growing houseplants?but to make you aware of some of the popular and common house plants toxic to dogs. A dog is a curious animal. Extremely argus-eyed in its quest and if your dog has a tendency to look for something to nibble on then this list of poisonous plants for dogs will help you.

Poisonous Houseplants for Dogs

1. Sago Palm

This exquisite plant sago palm is one of the favorites of landscapers. The bad news is if your dog has a tendency to bite or chew anything then this plant is dangerous. It contains a toxin called cycasin, which is known to cause liver damage. *Sago palm is also poisonous for cattle.
Toxins: Cycasin
Severity: Very high
Malicious Parts of the Plant: The whole plant
Symptoms: Vomiting, jaundice, increased thirst, hemorrhagic gastroenteritis, bruising, clotting disorder, liver damage, liver failure and death.

2. Alocasia

Alocasia 'Polly' 1
A genus of plants of the family Araceae, it consist of 79 species, originated from the area of the Eastern Himalayas, the tropical and subtropical regions of Asia, to tropical regions of the western Pacific and eastern Australia. Some species are endemic. They are also grown as a houseplant.
Toxins: Insoluble calcium oxalate
Severity: Moderate
Malicious Parts of the Plant: Leaves, Stems, and Roots
Symptoms: Mucous membrane irritation, intense burning and irritation of the mouth, lips, and tongue, excessive drooling, vomiting, difficulty in swallowing.

3. Aloe

A kind of leaf succulents, many varieties have various medicinal uses. But aloes are the plants toxic to dogs but only when they ingest it. There are around 500 species, comes in various forms? woody shrubs and sometimes vines. The geographical range of the plants of this type includes the Arabian Peninsula, Africa, South Asia and Madagascar.
Toxins: Saponins
Severity: Moderate
Malicious Parts of the Plant: Pulp and Juice
Symptoms: Vomiting, depression, diarrhea, lack of appetite, chills, change in the color of urine.

4. Arrowhead Plant

Syngonium podophyllum
Most common species is Syngonium podophyllum. It comes from the tropical areas of Central America and the Northern areas of South America. It is cultivated as an ornamental plant. The plant contains calcium oxalate in its sap, which is harmful if contacted or ingested.
Toxins: Insoluble calcium oxalates
Severity: Moderate
Harmful parts of the plant: All parts of the plant
Symptoms: Vomiting, depression, diarrhea, lack of appetite, chills, change in the color of urine.

5. Calla Lily

Calla Lily
Calla lilies are beautiful but at the same time, they are one of poisonous plants for dogs and cats. When the plant is chewed clinical signs are visible immediately.
Toxins: Insoluble calcium oxalates and unidentified, toxic alkaloids
Severity: Mild to Moderate
Harmful Parts of the Plant: All parts of the plant
Symptoms: Oral pain, diarrhea, drooling, lack of appetite, pawing at the mouth.

See more at Balcony Garden

What about our feline friends? Check out this article at The Cat Mom