Is Crossvine Poisonous? Here’s What You Need to Know

Is crossvine poisonous? That’s a question that many homeowners and garden enthusiasts have been asking themselves as they search for the perfect addition to their outdoor space. If you’re a beginner in the world of plants, this article is for you. In this comprehensive guide, we’ll explore everything you need to know about crossvine, including its toxicity, benefits, and how to care for it.

Crossvine (Bignonia capreolata) is a beautiful flowering vine that is native to the southeastern United States. It blooms in the spring and summer months with spectacular trumpet-shaped flowers that are red, orange, or yellow. Aside from its aesthetic appeal, crossvine has significant medicinal properties and has been used for centuries to treat various ailments. But, is crossvine poisonous? That’s the million-dollar question.

With so much conflicting information available online, it’s challenging to determine whether crossvine poses any harm to humans, pets, or wildlife. However, rest assured, you’re in the right place. We’ve done extensive research and talked to experts to get the most up-to-date and accurate information. So, if you’re looking to add crossvine to your garden or backyard, keep reading to discover everything you need to know.

Symptoms of Crossvine Poisoning

Crossvine is a common plant found in the southeastern United States that can be toxic to humans and animals if ingested. The plant contains a toxic compound known as an anthraquinone glycoside, which can cause various symptoms of poisoning in case of ingestion.

  • Stomach Issues: One of the most common symptoms of crossvine poisoning is stomach issues. This can include nausea, vomiting, and diarrhea, and may last for several hours after ingestion.
  • Respiratory Issues: Inhaled crossvine particles can cause respiratory issues such as difficulty breathing and wheezing. This is a greater concern if the plant is being burned.
  • Cardiac Issues: In severe cases, crossvine poisoning may lead to cardiac issues such as irregular heartbeats and low blood pressure. Ingestion in large amounts can be fatal.

If you suspect that you or someone you know has ingested crossvine, seek medical attention immediately. In case of respiratory issues, call 911 or poison control and remove yourself from the area where crossvine is growing.

For animals, the symptoms may include drooling, vomiting, and diarrhea, as well as difficulty breathing or cardiac issues. If your pet ingests crossvine, take them to the vet immediately.

Symptom Treatment
Stomach Issues Provide fluids and monitor symptoms. Seek medical attention if they worsen or persist.
Respiratory Issues Call 911 or poison control immediately. Remove yourself from the area where crossvine is growing
Cardiac Issues Seek immediate medical attention.

It is important to note that while crossvine poisoning is not common, it is still a concern for those living in or visiting areas where the plant grows. Understanding the symptoms and what to do in case of ingestion can help prevent further harm.

Crossvine toxicity in pets

Crossvine is a flowering plant that is often used as an ornamental vine in gardens and landscapes. While it can add beauty to your outdoor space, crossvine is known to be toxic to animals, particularly pets such as dogs and cats. Crossvine toxicity in pets can have serious consequences, so it’s important to be aware of the potential risks if you have this plant in your yard.

  • Symptoms of crossvine toxicity in pets: If your pet ingests crossvine, they may experience vomiting, diarrhea, abdominal pain, and loss of appetite. In severe cases, they may also develop muscle weakness, seizures, and difficulty breathing.
  • Treatment for crossvine toxicity in pets: If you suspect your pet has ingested crossvine, it’s important to seek veterinary care right away. The specific treatment will depend on the severity of your pet’s symptoms and may involve inducing vomiting or administering activated charcoal to help absorb the toxins.
  • Preventing crossvine toxicity in pets: The best way to prevent crossvine toxicity in pets is to remove the plant from your yard if you have pets that are prone to chewing on plants. If you choose to keep crossvine in your landscape, make sure to monitor your pets closely and discourage them from chewing on the plant. Consider providing plenty of safe chew toys and treats to redirect your pet’s chewing behavior.

While crossvine can be a beautiful addition to your yard, it’s important to keep in mind the potential risks it poses to your furry friends. By taking the necessary precautions and being aware of the signs and symptoms of crossvine toxicity in pets, you can help keep your pets safe and healthy.

If your pet is displaying any symptoms of crossvine toxicity, seek veterinary care immediately. Your veterinarian can provide guidance on the best course of treatment and help ensure that your pet receives the care they need to recover.

Common Name: Crossvine
Scientific Name: Bignonia capreolata
Toxicity: Contains a variety of toxic substances, including alkaloids and glycosides, which can cause gastrointestinal upset, muscle weakness, seizures, and respiratory failure in pets.

Knowing the signs and symptoms of crossvine toxicity in pets and providing prompt veterinary care can help ensure the best possible outcome if your pet is exposed.

Crossvine’s Effects on Human Health

Crossvine is a beautiful and popular climbing vine that is grown for its beautiful trumpet-shaped flowers and attractive foliage. However, there is a growing concern among people who admire this plant because of its potential toxicity. While crossvine is not known to be deadly, it can cause mild to moderate symptoms when ingested or when in contact with the skin.

In this article, we will discuss the possible effects of crossvine on human health and provide some precautions that you can take to avoid any problems.

Possible Health Effects of Crossvine

  • Digestive problems: Crossvine contains chemicals that can irritate the digestive system, leading to nausea, vomiting, and diarrhea. These symptoms are usually mild and go away within a few hours.
  • Allergic reactions: Some people may develop an allergic reaction when exposed to crossvine. This can cause skin rashes, hives, swelling, and difficulty breathing. If you notice any of these symptoms, seek medical attention immediately.
  • Skin irritation: The sap of crossvine can cause skin irritation, especially in people with sensitive skin. If the sap gets into your eyes, it can cause redness, watering, and irritation.

Precautions to Take

While crossvine is not considered toxic, it is important to take some precautions when handling or growing this plant to avoid any problems. Here are some tips:

  • Wear gloves, long-sleeved shirts, and pants when handling crossvine to avoid skin irritation.
  • If you have sensitive skin, avoid touching crossvine altogether.
  • If you notice any skin irritation or allergic reactions, wash the affected area with soap and water and seek medical attention if necessary.
  • Keep crossvine out of reach of children and pets, as they may be more vulnerable to its effects.
  • If you suspect that someone has ingested crossvine, contact the Poison Control Center or seek medical attention immediately.


While crossvine is a beautiful and popular plant, it is important to take some precautions when handling or growing it to avoid any health problems. Remember to wear protective clothing, keep it out of reach of children and pets, and seek medical attention if you notice any symptoms. By following these tips, you can enjoy the beauty of crossvine while staying safe and healthy.

Symptom Treatment
Digestive problems Drink plenty of water and rest
Allergic reactions Seek medical attention immediately
Skin irritation Wash the affected area with soap and water

With these precautions, you can enjoy the beauty of crossvine without any worries.

How to Identify Crossvine Plants

Crossvine plants belong to the Bignoniaceae family and are native to the southeastern regions of the United States. They are known for their strikingly beautiful trumpet-shaped flowers that bloom in the spring and early summer. Crossvine plants can be identified by several distinct features:

  • The leaves are dark green and glossy with a leathery texture.
  • The stems of the plant are woody and often reach lengths of 50 feet or more.
  • The flowers are bright red-orange or yellow and have a distinctive trumpet shape with a yellow or orange throat.
  • The fruit of the plant is a long, narrow, bean-like pod that contains seeds.

Other Characteristics of Crossvine Plants

While identifying the physical features of crossvine plants is important, there are also other characteristics that are helpful in identifying this species. Crossvine plants are fast-growing and can climb or trail along any surface by its adhesive rootlets. They typically prefer full sun to partial shade and well-drained soils.

In addition to its aesthetic appeal, the crossvine plant has also been used in traditional medicine. The plant contains antifungal and antimicrobial properties and has been used to treat various skin conditions.

Possible Poisonous Effects of Crossvine Plants

While crossvine plants have been used for medicinal purposes, it is important to note that they are also potentially toxic to humans and animals if ingested. The fruit of the plant contains a toxic compound called lapachol.

It is important to avoid ingesting any part of the plant to prevent possible toxic effects. If ingested, symptoms include abdominal pain, vomiting, and diarrhea.


Identification of crossvine plants is relatively easy due to its distinct physical features. However, because the plant is potentially toxic, it is important to handle it with care and avoid ingestion by humans and animals. If you are unsure about the identity of a particular plant, it is always best to consult a professional.

Physical Characteristics Other Characteristics Possible Poisonous Effects
Dark green and glossy leaves Fast growing Contains a toxic compound called lapachol
Woody stems with adhesive rootlets Prefer full sun to partial shade and well-drained soils Symptoms include abdominal pain, vomiting, and diarrhea if ingested
Trumpet-shaped flowers in bright red-orange or yellow Has been used in traditional medicine for skin conditions Handle with care and avoid ingestion to prevent potential toxic effects

Common Uses of Crossvine in Landscaping

Crossvine, scientific name Bignonia capreolata, is a popular vine plant in the United States due to its hardiness, fast growth, and eye-catching trumpet-shaped flowers. Its ability to thrive in varying climates makes it a versatile option for landscaping. Here are some common uses of crossvine in landscaping:

Groundcover for Erosion Control

  • Crossvine’s strong roots make it an excellent groundcover choice for erosion control on slopes and hills.
  • The vine’s ability to climb on supports, such as walls and trellises, can also help mitigate erosion by stabilizing soil with its roots.

Privacy Screen

Crossvine’s dense foliage and rapid growth make it an ideal candidate for creating natural privacy screens and partitions.

Decorative Wall Covering

Crossvine can add a splash of color to a dull wall or fence. The plant’s ability to climb on supports makes it a perfect choice for adding depth and texture to vertical surfaces.

Attractive Habitat for Wildlife

Crossvine’s nectar-rich flowers attract pollinators, including hummingbirds and butterflies. The plant’s berries also serve as a food source for birds and small animals.

Common name Botanical name
Trumpet Vine Campsis radicans
Crossvine Bignonia capreolata
Climbing Hydrangea Hydrangea anomala ssp. Petiolaris

Overall, crossvine is a hardy and versatile plant choice that can add visual interest, provide habitat for wildlife, and help solve soil erosion problems in a variety of landscaping settings.

Crossvine as a Medicinal Plant

Crossvine, also known as Bignonia capreolata, is a flowering plant that is native to the southeastern United States. While it is not typically used in modern medicine, traditional healers have used crossvine for various medicinal purposes.

  • Respiratory Issues: The Cherokee Indians used crossvine as a treatment for coughs and other respiratory issues. It is believed that the plant’s expectorant properties help to loosen mucus and ease congestion.
  • Skin Irritations: Crossvine has also been used to soothe skin irritations, such as rashes and eczema. The plant contains antioxidants and anti-inflammatory compounds that can help to reduce swelling and redness.
  • Wound Healing: Traditional healers would make a poultice out of crossvine leaves and apply it to minor cuts and wounds. The plant’s antiseptic properties could help to prevent infection and promote healing.

It’s important to note that while crossvine has been used for medicinal purposes, there is not enough scientific evidence to support its effectiveness. Additionally, the plant contains toxic compounds that can be harmful if ingested. As such, it should not be used without the guidance of a trained medical professional.


Common Name Crossvine
Botanical Name Bignonia capreolata
Parts Used Leaves, stems, and flowers
Medicinal Properties Expectorant, anti-inflammatory, antioxidant, antiseptic

Crossvine may have some medicinal properties that are worth exploring, particularly for respiratory issues, skin irritations, and wound healing. However, due to the plant’s toxicity, it should only be used under the guidance of a trained medical professional.

Alternative plants to use instead of crossvine

While crossvine may be an attractive plant to consider for your garden, its potential toxicity may be a cause for concern. Fortunately, there are several alternative plants that can serve the same purpose without the potential health risks.

  • Trumpet Honeysuckle: This vine produces beautiful trumpet-shaped flowers in shades of pink, coral, and yellow. It is easy to grow and attracts hummingbirds and butterflies.
  • Clematis: With a wide range of colors and shapes, clematis produces beautiful blooms that can climb walls, fences, and trellises.
  • Wisteria: A classic option for climbers, wisteria produces stunning cascading blooms in shades of purple, pink, and white.

When considering alternatives to crossvine, it is important to take into account the growing conditions of your garden. Be sure to choose a plant that will thrive in your specific climate and location.

Here are a few additional plants to consider:

  • Passionflower: This vine produces unique, intricate flowers in shades of blue, purple, and white, and attracts bees and butterflies.
  • Cherokee Rose: A hardy vine that produces fragrant white blooms in the spring, cherokee rose is drought-tolerant and can grow in a variety of conditions.
  • Hops: While typically grown for their use in beer-making, hops plants produce charming, cone-shaped flowers that can climb and wrap around structures.

When choosing an alternative to crossvine, consider the specific function you want the plant to serve. Do you want a plant that will climb walls and trellises? Or do you want a plant that will produce vibrant flowers to attract pollinators? There are plenty of options out there to suit your gardening needs.

Plant Light Requirements Water Needs Other Considerations
Trumpet Honeysuckle Full sun to partial shade Medium Attracts hummingbirds and butterflies
Clematis Full sun to partial shade High Comes in a variety of colors and shapes
Wisteria Full sun to partial shade Low Produces cascading blooms in shades of purple, pink, and white
Passionflower Full sun to partial shade Low Produces unique, intricate flowers that attract pollinators
Cherokee Rose Full sun to partial shade Low Drought-tolerant and hardy
Hops Full sun to partial shade High Typically grown for beer-making, but produces charming cone-shaped flowers

No matter what plant you choose as an alternative to crossvine, you can rest assured that you are making a safe and beautiful choice for your garden.

Is Crossvine Poisonous? FAQs

1. Is crossvine toxic to humans?

Answer: Yes, the crossvine plant can cause irritation if the sap comes in contact with the skin. Ingestion can cause mild stomach irritation, nausea, and diarrhea.

2. Can animals eat crossvine without getting sick?

Answer: No, animals should not eat crossvine as it can be toxic to them, especially if ingested in large amounts.

3. What are the symptoms of crossvine poisoning?

Answer: Symptoms of crossvine poisoning include stomach irritation, nausea, vomiting, and diarrhea. Severe cases may include breathing difficulties and low blood pressure.

4. How toxic is crossvine?

Answer: Crossvine is considered mildly toxic, and its effects are usually not severe in humans unless consumed in large amounts. However, it can be more harmful to animals.

5. How can I prevent crossvine poisoning in my pets?

Answer: Keep your pets away from crossvine plants and be sure to monitor them closely when outdoors to prevent ingestion.

6. Is crossvine poisonous if smoked?

Answer: Yes, smoking crossvine leaves can cause respiratory irritation and should be avoided.

7. What should I do if I suspect crossvine poisoning?

Answer: If you suspect crossvine poisoning in yourself or your pet, seek medical attention immediately.

Closing Title – Thanks for Visiting!

Crossvine may be a beautiful and eye-catching plant, but it is also important to be aware of its potential toxicity. It is always better to err on the side of caution and keep it away from children and pets. Thank you for reading our FAQs about crossvine and we hope to see you again soon!

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