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Are Your Houseplants Safe?

There is nothing more attractive and cheerful than a room filled with healthy green houseplants.  They offer aesthetics to the interior of our homes, improve indoor air quality, and often provide emotional satisfaction to the caregiver in getting the plant to bloom or produce new growth.  However, did you know that plant exposures are some of the most frequent poisonings reported to poison control centers?

There are more than 700 species of poisonous plants in the Canada and many of these can be found around the home. Some or all parts of a plant can be poisonous including the roots, stems, berries or even the nectar and pollen.  There are several chemical compounds capable of poisoning that can be found in a variety of plants.  Chemicals concentrated in the cells of roots, leaves, bark and seeds serve as the plant’s defense against insects and animal attacks.  Some of these compounds can be toxic, especially if ingested or touched by humans. 

The word “poisonous” generates many kinds of reactions and the majority of them are non life-threatening.  Among the key effects of poisonous plants are allergic reactions (caused by spores, pollen, or naturally occurring volatile compounds emitted into the air by plants), skin rash or dermatitis (caused by direct or indirect contact with allergenic or irritant compounds), and internal poisonings or irritations (caused from ingesting plants or plant parts).

There are many houseplants which are perfectly safe to grow and others which appear harmless but are toxic and dangerous.  It is important to be as knowledgeable as possible about the plants you have growing in your home.  According to the Washington Poison Center, the following houseplants (listed by common name) are considered safe and non-toxic, but still should not be ingested:

African Violet
Aluminum plant
Birds Nest Fern
Boston Fern
Cast Iron plant
China Doll
Christmas Cactus
Coleus
Corn plant
Dracaena
Gardenia
Goldfish plant
Jade plant
Mosaic plant
Orchids
Peperomia
Piggyback plant
Pink Polka-dot plant
Ponytail plant
Prayer plant
Purple Velvet plant
Spider plant
Swedish Ivy
Sword Fern
Yucca plant
Zebra plant

 

The following houseplants (by common name) to have some level of toxicity and therefore are considered to be toxic and/or poisonous.  Also listed are the parts of the plant that can be toxic and what effects it has on humans if ingested. 
Caladium
A showy plant with variegated, heart-shaped leaves.  The whole plant is injurious and causes irritation to the lips, mouth, and throat if ingested.  This plant can also be dangerous for animals if ingested.
Calla Lily
A flowering plant with smooth-edged arrow-shaped leaves which grow on long stalks.  The leaves are toxic and cause intense burning of the lips and mouth if ingested.  Contact dermatitis is also common.
Devil's Ivy/Pothos
A climbing vine with large heart-shaped leaves that are usually streaked with yellow.  The whole plant is toxic and causes a burning sensation in the mouth when eaten and dermatitis when touched.
Dumb Cane
Tall erect plants with large oblong leaves splotched with ivory markings.  The leaves are toxic and chewing on the leaves produces immediate and intense pain followed by swelling of the mouth.
Jerusalem Cherry
An ornamental houseplant that has bright red berries about the size of cherries.  The leaves and berries are toxic and causes a burning sensation in the mouth and throat, followed by gastric irritation and fever if ingested.
 Philodendron
Climbing vines with aerial roots and heart-shaped leaves.  The leaves are toxic and cause painful burning of the lips, mouth, tongue, and throat if ingested.  Contact dermatitis is also common and can be dangerous to animals if ingested.

Children under the age of six are at the greatest risk for accidental poisoning.  They are curious by nature and often investigate their surroundings by putting things in their mouths.  Obviously, the best prevention of plant poisonings is to teach your child to avoid the plants that are dangerous to touch and to resist the urge to taste even the most tasty looking berries and sweet smelling flowers.  Below are five more suggestions to help you and your family avoid possible plant poisonings:

  • Learn the names (common and scientific) of all plants in your home, garden, and landscaping and know which ones are poisonous.  Make a list of these plants and keep it handy in case of an accidental poisoning.
  • Put all poisonous houseplants out of the reach of children and pets.
  • Stored labeled bulbs and seeds out of the reach of children and pets.
  • Do not use flowers or other plant materials for food decorations or in cooking unless they are labeled “edible”.
  • Don’t assume a plant is safe because birds or other wildlife eat it.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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