25 Poisonous Plants That Are Deadly and Dangerous Additions to Your Indoor or Outdoor Space

Plants are beautiful additions to your home, whether they’re placed indoors or outside. While you may enjoy sprucing up your space with greenery, there are some that are too dangerous to keep around you. If you consider yourself to be a plant mom or experienced in the world of blooms, trees and herbage, we’re sharing a list of poisonous plants you should stay clear of.

Poisonous Plants

This list contains plants that have been reported as having systemic effects on animals and/or intense effects on the gastrointestinal tract. Please note that the information contained in our plant lists is not meant to be all-inclusive, but rather a compilation of the most frequently encountered plants. Individual plants may differ in appearance from the photos used on our listings. Please be sure to check the name of the plant to determine its toxicity.

Also, be advised that the consumption of any plant material may cause vomiting and gastrointestinal upset for dogs and cats. Plants listed as either non-toxic, or potentially toxic with mild GI upset as their symptoms are not expected to be life-threatening to your pets.

If you believe that your animal is ill or may have ingested a poisonous substance, or if you have any further questions regarding the information contained in this database, contact either your local veterinarian or the APCC 24-hour emergency poison hotline at 1-888-426-4435.

25 Poisonous Plants That Are Deadly and Dangerous Additions to Your Indoor or Outdoor Space

Here’s a visual guide of toxic plants you might have in your home.

Plants are beautiful additions to your home, whether they’re placed indoors or outside. While you may enjoy sprucing up your space with greenery, there are some that are too dangerous to keep around you. If you consider yourself to be a plant mom or experienced in the world of blooms, trees and herbage, we’re sharing a list of poisonous plants you should stay clear of.

While they may look captivating and smell absolutely amazing, these plants are deadly. Some are even too toxic for your animals (for instance, cats may suffer from kidney failure or even death if they accidentally consume lilies in small amounts). So if you really want to expand your green thumb, browse through these easy-to-care-for houseplants that are almost impossible to kill (aka snake plants) and keep the ones on this list away from you, your children and animals.

Jimson Weed

Jim McKinley/ Getty

With green leaves —that are sometimes tinged with purple — jimson weed is incredibly unsafe when ingested or inhaled. Although used to treat asthma and other health conditions, it can lead to nausea, vomiting and hallucinations.

Lantana (Lantana camara)

AYImages/ Getty

Keep these colorful and bright plants away from your children. Although your toddlers and babies may find them attractive, they’re toxic and poisonous (even to dogs and cats).