Popular Houseplants that are Toxic to Pets and Humans (Pictures)

Many popular houseplants are toxic to humans and pets. Many houseplants contain calcium oxalate crystals which are toxic if ingested or there are some houseplants with milky sap that can cause skin irritation. If you have children or pets at home, it is wise to be aware of which houseplants are toxic and which are safe to have around children. The good thing is you can safely live with toxic houseplants even with children and pets. You just need to keep it out of reach. Here are popular houseplants that are toxic to humans and pets.

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houseplants that is toxic to pets and humans
Toxic Houseplants

15 Houseplants that are Toxic to Humans and Pet

1. Swiss Cheese Plant (Monstera deliciosa)

Monstera Plant or Swiss Cheese Plant (Monstera deliciosa) is a houseplant that is toxic to pets and humans. Don’t let children or pets chew on the leaves of the Swiss Cheese plant because it contains calcium oxalate crystals. The crystals can cause vomiting and difficulty breathing.

Monstera Plant and Cat
Monstera Plant is Toxic to Humans and PEts

It is a popular houseplant, coveted for its large green leaves with holes. It gives off a tropical jungle vibe and is often seen in the backdrop of Instagram-worthy photos. The good thing about Monstera plants is they can grow large 6-8 feet tall so if it’s a large plant, which is easy to keep it out of reach from children and pets. However, if you have a small-sized Swiss Cheese plant, keep it off the floor since it is toxic to humans and pets. 

NameSwiss Cheese Plant
Botanical NameMonstera deliciosa
Daytime Temperature70 to 80 F (21-26C)
Night Time Temperature60 to 70 F (15-21C)
LightBright Indirect Light (no direct sun)
WaterMedium Water
HumidityMedium Humidity
Swiss Cheese Plant Facts

2. Fiddle Leaf Fig (Ficus lyrata)

Fiddle Leaf Fig (Ficus lyrata) is toxic to humans and pets. It is a popular plant with bold, spectacular leaves. Definitely, a go-to plant if you want to make a bold statement. Similar to Swiss Cheese Plant, Fiddle Leaf Fig is a tall houseplant that can grow to 8 to 10 feet tall. If it’s a large houseplant, it is easy to keep it out of reach from pets and children. If you have a small Fiddle Leaf Fig, make sure to keep it off the floor since it is toxic to pets and children. 

Fiddle Leaf Fig Toxic to Pets
Fiddle Leaf Fig is Toxic to Pets
NameFiddle Leaf Fig
Botanical NameFicus lyrata
Daytime Temperature70 to 80 F (21-26C)
Night Time Temperature60 to 70 F (15-21C)
LightBright Indirect Light
WaterMedium Water
HumidityHigh Humidity
Fiddle Leaf Fig Houseplant Facts

3. ZZ Plant (Zamioculcas zamiifolia)

ZZ Plant (Zamioculcas zamiifolia) is toxic to humans and pets. It is a very popular houseplant known for its thick, fern-like foliage. It is a tough, easy to grow, and low-maintenance houseplant. 

ZZ Plant
ZZ Plant

Try to keep it off the floor since ZZ plants are toxic to humans and pets. Don’t let children or pets chew on the leaves of the ZZ plant because it contains calcium oxalate crystals. The crystals can cause vomiting and difficulty breathing. It can also result in swelling of lips, tongue, and mouth and excessive drooling.

NameZZ Plant
Botanical NameZamioculcas zamiifolia
Daytime Temperature70 to 80 F (21-26C)
Night Time Temperature60 to 70 F (15-21C)
LightBright, filtered Light but can tolerate low light
WaterModerate Water
HumidityTolerates dry air well
ZZ Plant Facts

4. Snake Plant (Sansevieria trifasciata)

Snake Plant (Sansevieria trifasciata) is a toxic houseplant. Don’t let children or pets chew on the leaves of your Snake plant because it contains saponins. Saponins have been used as fish poison! It can cause vomiting, nausea, and diarrhea. 

Snake Plant
Snake Plant

Snake plants are very popular houseplants that are almost indestructible. It is a tough houseplant known for pointy, sword-like leaves. 

NameSnake Plant
Botanical NameSansevieria trifasciata
Daytime Temperature70 to 80 F (21-26C)
Night Time Temperature60 to 70 F (15-21C)
LightBright, filtered Light but can tolerate low light
WaterModerate Water
HumidityTolerates dry air well
Snake Plant Houseplant Facts

5. Kris Plant (Alocasia sanderiana)

Kris Plant (Alocasia sanderiana) is toxic to children and pets. It contains calcium oxalate crystals which can cause vomiting and difficulty breathing. Don’t let children and pets chew the leaves of your Alocasia sanderiana. Keep it off the floor, out of reach. 

Kris Plant
Kris Plant

Kris Plant is a very popular houseplant with beautifully patterned leaves. It is a houseplant that likes warmer temperatures and can tolerate low-light locations. 

NameKris Plant
Botanical NameAlocasia sanderiana
Daytime Temperature65 to 85F (18-30C)
Night Time Temperature65 to 85F (18-30C)
LightBright indirect light
WaterModerate Water
HumidityHigh Humidity
Kris Plant Facts

6. Zebra alocasia (Alocasia ‘Zebrina’)

Zebra alocasia (Alocasia ‘Zebrina’) is toxic to humans and pets because it contains calcium oxalate crystals. These crystals can cause difficulty breathing, swelling of the lips and mouth, and vomiting. 

Zebra alocasia
Zebra alocasia

Zebra alocasia has beautifully patterned leaves. It is a houseplant that likes warmer temperatures and can tolerate low-light locations. 

NameZebra alocasia
Botanical NameAlocasia ‘Zebrina’
Daytime Temperature65 to 85F (18-30C)
Night Time Temperature65 to 85F (18-30C)
LightBright indirect light
WaterModerate Water
HumidityHigh Humidity
Zebra alocasia Houseplant Facts

7. Philodendron Selloum (Thaumatophyllum bipinnatifidum formerly called Philodendron bipinnatifidum)

Philodendron Selloum (Thaumatophyllum bipinnatifidum formerly called Philodendron bipinnatifidum) is a popular houseplant with bold, jungle-like foliage. However, it is toxic to humans and pets. Make sure to keep it out of reach of small children and pets. If the leaves are ingested or chewed on, it can cause vomiting, and difficulty breathing and will result in swelling of lips and mouth area. 

Philodendron selloum
Philodendron selloum
NamePhilodendron Selloum
Botanical NameThaumatophyllum bipinnatifidum formerly called Philodendron bipinnatifidum
Daytime Temperature70 to 80 F (21-26C)
Night Time Temperature60 to 70 F (15-21C)
LightBright, Filtered Light
WaterModerate Water
HumidityHigh Humidity
Philodendron Selloum Houseplant Facts

8. String of Pearls (Senecio rowleyanus)

String of Pearls (Senecio rowleyanus) is a unique looking hanging houseplant with strings of cascading green pearls. Children and pets tend to gravitate towards these bead-like pearls but be careful because your String of Pearls is toxic to humans and pets. Don’t let children or pets chew on the leaves of your String of Pearls. It can cause vomiting and an upset stomach. 

String of Pearls
String of Pearls
NameString of Pearls
Botanical NameSenecio rowleyanus
Daytime Temperature70 to 80 F (21-26C)
Night Time Temperature60 to 70 F (15-21C)
LightFull Sun but Can Tolerate Bright, Filtered Light
WaterLow Water
HumidityCan Tolerate Dry Indoor Air
String of Pearls Houseplant Facts

9. Heartleaf Philodendron (Philodendron hederaceum)

Heartleaf Philodendron (Philodendron hederaceum) is one of the most popular houseplants in the world but be careful if you have children and pets at home. Heartleaf Philodendron is toxic to humans and pets. It contains calcium oxalate crystals which if ingested can cause difficulty breathing, vomiting, and swelling of lips and tongue. The best is to display your Heartleaf Philodendron in a hanging basket or on a high bookshelf so it is safely out of reach from children and pets. 

Heartleaf Philodendron
Heartleaf Philodendron
NameHeartleaf Philodendron
Botanical NamePhilodendron hederaceum
Daytime Temperature70 to 80 F (21-26C)
Night Time Temperature60 to 70 F (15-21C)
LightBright, Filtered Light. Can Tolerate Low Light.
WaterModerate Water
HumidityHigh Humidity
Heartleaf Phidodendron Houseplant Facts

10. Satin Pothos (Scindapsus pictus)

Satin Pothos (Scindapsus pictus) is an easy-to-grow houseplant with beautiful, silvery green leaves. However, it is toxic to humans and pets. If ingested, it can cause upset stomach and vomiting. It’s best to keep your Satin Pothos in a hanging basket or on a bookshelf so it is safely out of reach from children and pets.

Satin Pothos
Satin Pothos
NameSatin Pothos
Botanical NameScindapsus pictus
Daytime Temperature70 to 80 F (21-26C)
Night Time Temperature60 to 70 F (15-21C)
LightBright Indirect Light. Can Tolerate Medium Light.
WaterModerate Water
HumidityHigh Humidity
Satin Pothos Houseplant Facts

11. Pothos (Epipremnum aureum)

Pothos (Epipremnum aureum) is a very popular houseplant with beautiful, shiny, heart-shaped leaves. It is a great beginner’s houseplant because it is easy to grow and almost impossible to kill!  However, be aware that Pothos are toxic to humans and pets. It contains calcium oxalate crystals which if chewed on can result in vomiting and difficulty breathing. Keep it perched on a high bookshelf or in a hanging basket, so it is safely away from children and pets.

Pothos
Pothos
NamePothos
Botanical NameEpipremnum aureum
Daytime Temperature70 to 80 F (21-26C)
Night Time Temperature60 to 70 F (15-21C)
LightBright, Filtered Light or Artificial Light. Can Tolerate Medium Light.
WaterModerate Water
HumidityHigh Humidity
Pothos Houseplant Facts

12. African Milk Tree (Euphorbia trigona)

African Milk Tree (Euphorbia trigona) is a tall cactus-looking houseplant that is toxic to humans and pets. It produces a milky latex sap that can irritate the skin and eyes of pets and humans. Keep your African Milk Tree away from your pets and children. 

cropped-African-Milk-Tree-Houseplants-How-to-Care-Guide.jpg
NameAfrican Milk Tree
Botanical NameEuphorbia trigona
Daytime Temperature70 to 80 F (21-26C)
Night Time Temperature60 to 70 F (15-21C)
LightBright Indirect Light. Can Tolerate Medium Light.
WaterLow Water
HumidityCan Tolerate Dry Indoor Air
African Milk Tree Houseplant Facts

13. Angel Wing Begonia

Angel Wing Begonia is a houseplant with stunningly attractive foliage. My favorite is the polka-dot leaf Begonia maculata. However, be careful when you have it at home around children and pets because Angel Wing Begonia is toxic to humans and pets. Keep it out of reach from pets and children. 

Angel Wing Begonia
Angel Wing Begonia
NameAngel Wing Begonia
Daytime Temperature70 to 80 F (21-26C)
Night Time Temperature60 to 70 F (15-21C)
LightBright Indirect Light. Avoid Direct Sun.
WaterModerate Water
HumidityHigh Humidity
Angel Wing Begonia Houseplant Facts

14. Kalanchoe (Kalanchoe blossfeldiana)

Kalanchoe (Kalanchoe blossfeldiana) are holiday flowering houseplants that are toxic to humans and pets. Don’t let children or pets chew on the leaves of your Kalanchoe plant or even drink the water in the vase of the flowers because it contains cardiac glycosides. Cardiac glycosides can cause vomiting, nausea, abnormal heart rhythms, drooling, tremors, dilated pupils, and fatally high levels of potassium. It affects the heart muscle. Keep it away from children and pets! 

Kalanchoe
Kalanchoe
NameKalanchoe
Botanical NameKalanchoe blossfeldiana
Daytime Temperature75 to 85 F (24-30C)
Night Time Temperature65 to 75F (18-24C)
LightFull, Direct Sun
WaterModerate Water
HumidityTolerates Regular Indoor Air
Kalanchose Houseplant Facts

15. Caladium (Caladium bicolor)

Caladium (Caladium bicolor) or Elephant Ears, are beautiful houseplants with showy foliage. Beware that Caladiums are toxic to pets and humans because it contains calcium oxalate crystals. Don’t let children or pets chew on the leaves because it can cause excessive drooling, mouth swelling, vomiting, and difficulty breathing. Keep your Caladium away from pets and small children. 

Caladium
Caladium
NameCaladium
Botanical NameCaladium bicolor
Daytime Temperature75 to 85 F (24-30C)
Night Time Temperature65 to 75F (18-24C)
LightLow Light
WaterHigh Water
HumidityHigh Humidity
Caladium Houseplant Facts

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Popular Houseplants that are Toxic to Pets and Humans (Pictures)

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