Poisonous Flowers to Be Wary of

Poisonous flowers can be difficult to identify, and it is hard to know which ones can make you and your pets sick. There are some that should be avoided. Here’s a list of the most common poisonous flowers you may find in your garden.

Many of these are popular flowers that gardeners love to grow from seeds or small plants to add to borders and pots in and around the garden. Some of these are less common and known to be poisonous.

Before I get into this post, I am proud to announce that I was interviewed by Starter Story, a blog for people just starting a business. If you are curious as to how Blooming Anomaly started or want to get inspired by others, please check out my interview and others on Starter Story!

Why Poisonous Flowers?

With October fast approaching, I wanted to write a blog post with a theme for the month, but that can also apply throughout the year in your garden. Poisonous plants and flowers are items every gardener should be wary of throughout the year. So, I thought I would make a list of poisonous flowers with descriptions so you know what to look out for.

Poisonous Flowers Names

It’s that time of year again! The flowers are blooming, the bees are buzzing and it seems like everyone is getting ready for fall. But there’s one thing you should be careful about when planting your garden this year: poisonous plants. Here is a list of some common poisonous flowers so you can stay safe in your garden.

There are a number of poisonous flowers that can be found in gardens, and it is important to know which ones they are. The following list includes 30 different types of flowers that should be avoided by gardeners. Some may even cause death if ingested!

Read on for more information about each flower type including the name, where you might find it, what makes it dangerous and how to avoid being harmed. Here is a quick list to get you started:

• Daffodil
• Oleander
• Larkspur
• Foxglove
• Hyacinth
• Lily of the Valley
• Hydrangeas
• Tulips
• Poinsettia
• Desert Rose
• Rhododendrons
• Azaleas
• Bird of Paradise flowers
• Gloriosa Lilies (aka Glory lily, Rosary Pea or Crab’s Eye )
• Amaryllis
• Bluebells
• Iris (Iridaceae family also includes poisonous Bulbs and Corms.)
• Easter lily
• Peace lily
• Hemlock
• Wisteria
• Coneflowers
• Snowdrops
• Cyclamen
• Chrysanthemum
• Calla Lilly/Zantedeschia aethiopica/Arum italicum Family Araceae (
• Milkweed
• Belladona
• Castor oil plant
• Bleeding heart

These poisonous flowers can be found throughout gardens and flowerbeds all around the world. They are particularly common in Mediterranean climates, but you could also find them growing wild in forests or fields depending on where you live.

Many of these blooms have a beautiful appearance which may make it difficult to tell that they might harm humans if ingested or touched! Read below for more information about each poisonous plant type including what makes it deadly and how to keep yourself safe from harm when gardening with these toxic specimens.

What Types of Flowers are Poisonous?

There are a number of poisonous flowers that can be found in gardens, and it is important to know which ones they are. The following list includes 30 different types of flowers that should be avoided by gardeners. Some may even cause death if ingested!

Do you know which flowers are poisonous? Some of the most dangerous flowers are those that grow in your own garden. Learn about the types of flowers to avoid and why they are toxic.

Daffodil

The daffodil is one of the most popular types of flowers across the world because of its beauty and relatively low cost compared to other varieties. However, this attractive bloom has a high toxin content because its bulbs contain toxins that can be harmful to humans. Ingesting daffodil bulbs can cause a poisonous reaction in the body that leads to vomiting, abdominal pain, and diarrhea.

Beautiful yellow daffodil flowers are poisonous to humans, cats, and dogs which can cause vomiting if ingested by mouth or skin contact. This type of poisonous plant may not be as harmful compared to others such as lilies but still should be kept away from children due to its toxicity levels.

These lovely spring flowers contain poisonous alkaloids that produce symptoms of headache, dizziness, and even nausea when consumed. Daffodils are one of the few poisonous plants that can affect your pets as well as people with their toxic chemical compounds!

Oleander

The oleander is another beautiful garden specimen that has toxic flowers but its bark contains an especially high level of poison called cardiac glycosides (cardenolides). These toxins affect electrical impulses within animals and people, causing all kinds of health issues. A popular ornamental flowering shrub that is poisonous for all mammals with its leaves or flowers causing vomiting, diarrhea, bradycardia , abdominal pain, and hypotension.

The oleander (Nerium oleander) is an extremely poisonous plant, causing thousands of accidental poisonings every year. All parts of this beautiful flowering shrub are poisonous to humans including the flowers and leaves so it’s best to avoid planting them in your yard or around children’s play areas.

White oleanders contain a poisonous cardiac glycoside named “nerioside” that causes an increase in blood pressure when it enters your body. The sap is also poisonous if you get it on your skin or ingest it because of its toxicity which can prove fatal to both humans and animals such as cats and dogs.

Larkspur

This flower’s scientific name is Delphinium, but it is better known as larkspur. It’s poisonous to both animals and humans. The poisonous alkaloids delphinine and ajacine are found in the root, stems, and leaves of this flower.

Larkspur is poisonous to both humans and animals. If ingested, the larkspur plant can cause vomiting, inflammation of the mouth or tongue, shortness of breath due to throat swelling resulting from severe irritation.

These chemicals result in cardiac failure when consumed by human adults, livestock/pets after ingestion of any part of the flower including nectar from flowers pollinated by bees for example via contact with skin or inhalation of dust containing pollen spores.

Foxglove

Foxglove contains a poisonous glycoside named digitoxin which may lead to nausea or difficulty swallowing when ingested by humans or other small mammals such as cats. If you have livestock this flower should be removed from your property immediately because it could kill them too! It causes weakness followed by heart arrhythmias so hay containing foxgloves should

Popular for its tall spires of showy bell-shaped flowers, it’s easy to see why gardeners want these types of plants around their homes or businesses. However, they are poisonous due to cardiac glycosides which affect heart rhythms when eaten by humans. Make sure you know what you’re planting before placing them in your landscape!

Hyacinth

The bulbs of hyacinth flowers are poisonous to both animals and humans. The bulbs look similar to onions and shallots, making them look edible when they are the complete opposite. When ingested, the poisonous substance in hyacinths can cause vomiting and diarrhea.

Although its poisonous properties are not as severe, it can still cause vomiting, diarrhea, and other gastrointestinal problems.

Lily of the Valley

Another popular flower for gardens is the lily of the valley which commonly grows into large clusters near springs or creeks with moist soil conditions like those found next to water sources. This type of plant creates poisonous crystals inside its leaves and stems making it poisonous if ingested by humans! Symptoms from this toxin include nausea, headaches, and even heart problems.

Hydrangeas

This poisonous plant is a popular choice for flower gardens and attracts hummingbirds with its vibrant colors. These shrubs are not as poisonous as other flowers but can cause dermatitis.

While they are poisonous, it is not lethal and there have been no recorded deaths from this poisonous plant. The toxic ingredient in hydrangeas is saponin which can cause diarrhea and vomiting if ingested by humans or animals. So while you shouldn’t eat the flowers, they won’t kill you either.

Hydrangeas are a popular shrub to add to borders and pots in and around the garden. Check out my post about how to plant hydrangeas for more information.

Tulips

The poisonous part of this beautiful flower is the bulb. This poisonous plant contains toxic alkaloids and can produce symptoms like vomiting, diarrhea, dizziness, and even convulsions if consumed in large quantities!

For most flowers, tulips aren’t poisonous with only their bulbs being toxic for about ten different species of insects including rabbits who may ingest them while grazing. But despite this fact gardeners should still be careful with Tulip plants because they contain toxins that can harm both people and animals.

Poinsettia

The popular red and white poisonous plant is a favorite around Christmastime. It contains toxins like cardiac glycosides which can cause vomiting and diarrhea in humans if ingested, but it’s also poisonous to dogs too!

The festive poinsettia is well-known for being poisonous to both humans and pets. Symptoms of poisoning include vomiting, diarrhea, breathing difficulties, coma, or even death.

If you choose to grow poinsettias during the holidays or throughout the year, make sure they are high up or in a place where they won’t harm your pets.

Desert Rose

The desert rose is known by many names. Some call it the poisonous rose, some poisonous holly, or poisonous variety of gypsum. The part that’s toxic is actually the leaves which contain toxins called saponins that can cause vomiting and diarrhea if consumed by humans.

Rhododendrons

Rhododendrons are poisonous to both humans and animals. Just one leaf can cause vomiting, diarrhea, anemia, depression of the central nervous system, delirium, or coma if ingested by a human.

If ingested, the poisonous substance can cause gastrointestinal irritation that may result in vomiting and diarrhea.

The Azalea

Also poisonous to people is the azalea which contains grayanotoxin in all parts of its plant! It causes vomiting at first but then goes on to affect your heart rate as well as causing low blood pressure too!

This beautiful pink flower has leaves containing grayanotoxin making it poisonous for animals and anyone who tries to eat them because they inhibit nerve function causing paralysis! Symptoms from eating this plant include weakness and loss of coordination.

These poisonous plants contain grayanotoxin that affects cardiac function causing low blood pressure that may lead to shock if enough has been consumed. Ingesting a small amount will just make you sick with symptoms similar to food poisoning.

Bird of Paradise

Also poisonous to humans is the bird of paradise which contains poisonous alkaloids and glycocides. Birds of paradise are great to add to tropical gardens, but they are poisonous to humans and animals. Symptoms include nausea, vomiting, convulsions, or tremors.

Gloriosa Lilies

Gloriosa lilies are poisonous to humans and animals. They can cause vomiting, abdominal pain, diarrhea, convulsions, and even death if consumed by a human in large quantities!

Lilies are beautiful plants often found in gardens however all parts of these lilies except the pollen are poisonous to cats, dogs, horses, and other mammals so keep them away from your pets!

Amaryllis

Another poisonous flower to gardeners is the ‘Amaryllis’. This plant contains poisonous alkaloids and saponin. Symptoms include nausea, vomiting, labored breathing, or cardiac arrhythmia.

For humans, it can be lethal if consumed in large quantities. It does not pose any threat to dogs though as they are unable to break down these chemicals properly due to their size difference from humans.

Ingestion of any part of the poisonous plant can lead to stomach aches, vomiting, diarrhea, and weakness. In rare cases, death from respiratory failure has been recorded.

Bluebells

Eating them causes numbness in the mouth and throat which progresses up through the body with symptoms including heart palpitation seizures dizziness headache drowsiness confusion vision problems bluish discoloration on fingers. Although most cases do not result in serious consequences eating too many may cause digestive upset.

All parts of this plant contain toxins known as Liliaceae alkaloids which affect heart functions resulting in low blood what? more about bluebells and how they are poisonous.

Iris

There are over 200 species of iris where all parts may be poisonous including roots, stems, bulbs and rhizomes as well as pollen grains for those who suffer from hay fever allergies! It contains alkaline and other poisonous components that can be harmful to animals and people.

Easter Lily

The Easter lily is another holiday plant that can be poisonous. If you have a cat or dog that is a poisonous plant eater, the Easter lily should be removed from your home. The poisonous part of this beautiful white flower is called lycorine and can cause vomiting, nausea, diarrhea, burning urination, and other unpleasant symptoms.

The Peace Lily

The peace lily is a popular houseplant that is easy to grow and maintain. It can add some color and beauty inside your home but also has some poison components to it that you should be mindful of.

The peace lily has poisonous white sap that causes irritation if it gets in your eyes or on broken skin! If consumed, this beautiful plant can cause burning of the mouth, stomach pain and even vomiting too!

Hemlock

Hemlock is one of the most poisonous flowers. This plant is so poisonous that people have died after eating the leaves of this poisonous flower! All parts of hemlock are poisonous, including its roots and seeds which you should definitely keep away from children especially when they want to experiment in your garden by planting their own things or playing with them.

Hemlock is a poisonous plant that can cause breathing problems, seizures, and even death if ingested. It is one of the more well-known poisonous plants that you should be wary of. It looks similar to Queen Anne’s Lace, but one plant you should steer clear of.

Unlike other plants, hemlock has an unpleasant smell that should warn people of its poisonous properties.

Wisteria

Wisteria flowers are poisonous but are still popular for ornamental purposes. The flowers contain glycosides which can cause gastric distress if ingested, while skin contact causes dermatitis.

Wisteria is poisonous to livestock and humans, but its most poisonous part is the seeds which contain cyanogenic glycosides.

Coneflowers

Coneflowers are great for adding color to your garden but be careful when handling them as they contain pyrethrum alkaloids that will irritate the skin upon contact with mucous membranes such as eyes or mouth through dermatitis. It is also poisonous to pets so it’s best not to let your pup right up to the tall, narrow plant. If you come in contact with the sap of this plant, you will experience burning sensations and redness on the skin.

The flowers are pretty but they contain alkaloids that can be poisonous if ingested by humans or animals. They might cause vomiting, diarrhea, coma, or even death depending on how much was eaten.

Snowdrops

Snowdrops are another poisonous flower to watch out for. Eating any part of the plant causes vomiting, diarrhea, and general gastrointestinal distress. Don’t worry though, deer seem to be unaffected by them!

Cyclamen

Cyclamen are popular flowers that grow well in colder weather around the holiday season. These flowers bloom in various shades of pink, red, and white. They are great plants to enjoy in containers and pots in a small patio garden or on the porch.

They are poisonous to cats and dogs if swallowed, but they need not be fatal.

Chrysanthemum

Don’t let the beautiful chrysanthemum fool you; this flower is poisonous and can cause vomiting, diarrhea, nausea, or even convulsions. This bright yellow to orange-red colored plant is often used in dried arrangements but only if it has been treated with chemicals that remove all of its toxins!

This flower is more known to be poisonous to cats and the effects are mild as long as your feline friend does not ingest too much of the plant.

Calla Lily

The calla lily is another lily that can be harmful to people and animals. Calla lilies contain poisonous alkaloids and calcium oxalate. Calcium oxalate can cause intense burning, swelling, or numbness in the mouth.

Some of these poisonous flowers could be helpful for medical purposes such as belladonna, foxglove & datura which all contain atropine (used to treat heart conditions)

There are also poisonous plants that might not kill you but will certainly make your day a lot worse: castor oil plant, cowbane & poinsettia just to name a few! If it is ingested by humans symptoms include nausea, vomiting diarrhea, and stomach pain. It’s always best practice to check with an expert before ingesting anything strange.

Milkweed

Milkweed is poisonous to livestock and humans if ingested. It contains cardiac glycosides which induce, vomiting, diarrhea, abdominal pain. Other common names include silkweed or swamp milkweed. First aid for poisoning includes inducing vomiting within 30 minutes of ingestion then giving water with activated charcoal.

The poisonous milkweed flower has a long history of medicinal use, along with far more dangerous effects. This plant produces a toxin called cardenolide which can be extremely poisonous if ingested by humans or livestock.

For those who enjoy watching butterflies in their garden, milkweed is one of many types of flowers that can attract and keep these pollinators coming back to your outdoor space.

Belladonna

Belladonna or nightshade is poisonous for both humans & pets – symptoms include dilated pupils, dry mouth, fever. Children are especially at risk from this poisonous plant as it can cause convulsions and hallucinations! It’s a good idea not to grow these plants around where children play as they could come into contact with the plant without you knowing.

If your dog has been chewing on any poisonous plants then get them checked out by a vet immediately. The sooner treatment starts the better chances there are of survival! Foxglove contains cardiac glycosides which affect heart rate so should be kept away livestock such as cattle who may

This poisonous plant is also known as deadly nightshade, devil’s berries, or death cherries. It contains tropane alkaloid that can cause hallucinations to those who ingest them

If any petals from these poisonous flowers fall into your mouth then don’t eat it because they’re poisonous! If you do accidentally swallow some parts of the flower then try not to worry too much since most cases aren’t fatal unless ingested in large amounts. Make sure to wash out your mouth with water.

Castor Bean

If you have ever seen the castor oil plant you know how beautiful it is and probably never imagined that this popular ornamental could actually poison people! Ingesting just three seeds from this flowering plant can kill an adult human being so gardeners beware when planting near children’s play areas.

Bleeding Heart

Bleeding heart is a small bush that blooms flowers that look like upside-down hearts. They come in various shades of pink and red. They look beautiful growing in a garden bed along the border or in containers on a porch or patio.

The bleeding heart flower may look pretty but it can cause seizures, vomiting, and heart attacks. It’s known for its poisonous alkaloids which can cause heart problems.

Poisonous Flowers to Touch

We all know flowers are beautiful and make our gardens look spectacular, but some of them can be dangerous if touched. Let’s take a look at which ones you should avoid touching.

There is a common misconception about which flowers are good for touch. That’s why I’m going to share with you the list of those that can cause harm if touched, as well as those that are safe to touch.

The first list includes: larkspur, peonies, daffodils, irises and azaleas. The second one includes: honeysuckle, jasmine and gardenias. Remember this before your next stroll through the gardens!

People who have allergies to pollen should be extra careful as some of these poisonous flowers also produce lots of it which may lead to an allergic reaction or asthma. Some common instances where people suffer from this kind of allergy onset is if they inhale pollen particles while gardening.

Contact with parts of certain poisonous plants leads to dermatitis reactions on skin which causes itching followed by rashes upon exposure over a long period of time .

Flowers that are safe to touch include the petunia, the daisy and many others that are popular in garden centers.

The above information should help you keep your family safe from poisonous flowers that may just look beautiful along your fenceline! Also remember that some of the more poisonous plants out there will cause skin irritation so always use gloves when handling them!

What is the Most Deadly Flower?

Many people think that the most poisonous flower is the oleander. It’s not! The most deadly flower in the world is actually a type of lily, called “Nerium Oleander.”

Nerium Oleanders are known to be extremely poisonous and can cause death if ingested by humans or animals. They contain various types of toxins such as rotenone, nerioside, and oleandroside which all have damaging effects on human health.

There are many other flowers out there who pose a threat to our lives when we come in contact with them but none compare to this one. Why? Because they’re so poisonous that just one drop from an open blossom could kill someone! This plant should definitely be avoided at all costs.

What is the Prettiest but Deadliest Flower?

I bet you know the prettiest flower. Roses, lilies, tulips – they are all so beautiful and fragrant. But what if I told you that there is a flower that is just as pretty but more deadly than any other?

This flower might be hard to guess because we don’t think of it as a garden plant: its called oleander and it grows mostly in warm climates like California or Florida. Oleanders have pretty white flowers with purple tips and smell nice too! They can grow up to 12 feet tall!

However, this beauty has venomous thorns on their branches which secrete poison when touched. The juice from these thorns can cause death within minutes if ingested or inhaled.

What are the Symptoms of Poisoning?

Symptoms include difficulty breathing or swallowing, drooling, vomiting , loss of appetite, depression , increased thirst and urination with an elevated body temperature. If your pet ingests any part of these poisonous flowers you must seek immediate veterinary attention! It’s best to keep poisonous plants out of reach from pets at all times anyway just to avoid accidents happening.

Symptoms of poisoning in people include skin irritation, nausea and vomiting. If you have young children around your garden it’s best to be conscious of poisonous plants like these that look innocent enough but are very dangerous for them.

Bonus: What are the Top 10 Most Poisonous Plants?

Gardeners, do you know what the top 10 most poisonous plants are? If not, I am here to help! You don’t want your family and friends unwittingly bringing home a plant that’ll harm them.

Fortunately for you, this list of the top 10 most poisonous plants has just what you need:

• Castor bean plant
• Oleander plant
• Daffodil plant
• Poison oak
• Black locust tree
• Yew tree
• Bracken fern
• Gardenia
• Red Cedar
• Dogwood tree

Poisonous Flowers

The flowers mentioned in this blog post are all toxic to humans, but they can be beautiful additions for your garden. Remember that these plants should never be ingested or used as a topical treatment on the skin – not even with gloves! If you have any of these flowers at home, make sure to keep them away from children and pets who might accidentally eat them.

Just because some of these plants have unpleasant features does not mean you can’t enjoy some of them in your garden. Many of these poisonous plants are enjoyed by gardeners all around the world. Just be mindful of where your pets and children are when outside and around these plants.

Do you have any of these poisonous flowers in your garden? Let me know in the comments section below!