Poisonous hydrangeas: Dangerous for cats, dogs & Co.?

Again and again the question arises whether the flower can be dangerous for cats, dogs and Co. We clarify whether hydrangeas are poisonous.

That the hydrangea(Hydrangea) is slightly toxic is actually not a rumour. However, the same applies here: the poison is in the dose. In any case, you do not have to banish the beautiful flowering shrub from your garden; preventive measures and a watchful eye are usually sufficient to protect animals and small children adequately. In this article you can find out what needs to be considered and what you have to do if poisoning does occur.

Poisonous hydrangea?

The deciduous flowering shrub contains various substances that can lead to symptoms when consumed - or in the case of an allergy when they come into contact. These include, for example, the glycoside hydrangin and the isocoumarin hydrangenol. Both substances are mainly found in the leaves and can cause contact allergies in certain people. This means that the immune system reacts excessively to the substances and the affected area itches or burns, for example. The hydrangea also contains saponins, which are also found in various

medicinal plants can be found and in small amounts can even have positive effects on the body. In concentrated form, however, they can also irritate the mucous membranes in the mouth and stomach region.

The only highly toxic substance in hydrangeas is hydrocyanic acid. Hydrogen cyanide inhibits an important enzyme in the respiratory chain and can quickly lead to a dangerous lack of oxygen. However, the extent to which the plant is poisonous in the end depends on both the amount consumed and the parts of the plant in question. While all parts of the hydrangea are poisonous, the flowers and leaves have the highest concentration.

Is the hydrangea poisonous to humans?

If a person consumes large amounts of hydrangea, its toxins can lead to symptoms of poisoning. These include symptoms such as dizziness, anxiety, shortness of breath, cramps or circulatory problems. However, since the leaves and flowers of the hydrangea taste bitter, at least the risk of children eating large amounts is unlikely. Nevertheless, it is best to keep an eye on children and educate them that the magnificent flowers may look beautiful, but they are not meant to be eaten. If you want to be on the safe side, it is best to plant the hydrangea in a location that is out of reach for humans or animals. People who are allergic to hydrangeas do so as soon as they come into contact with the plant. If that's the case, it's best to compare the hydrangeas to others ornamental plants exchange in the garden.

Notice: The hydrangea is said to have an intoxicating effect, which is why it is sometimes smoked as a cannabis substitute. However, the effect has not been scientifically proven and smoking is dangerous because it releases hydrocyanic acid glycosides, which in turn impede the transport of oxygen.

Are hydrangeas poisonous to cats, dogs and the like?

The hydrangea is also considered poisonous for animals such as horses, dogs, hamsters, rabbits, guinea pigs, cats or birds. The toxins of the colorful flowering shrub usually lead to gastrointestinal problems or circulatory problems. Again, serious problems only arise when large amounts are consumed, unless your pet is very sensitive or has an allergy. Fortunately, the bitter taste of the hydrangea also has a deterrent effect on animals. However, if your pet has nibbled on the hydrangea, it is worth checking with the vet to make sure everything is ok.

What to do if you have hydrangea poisoning

If people or animals have eaten parts of the hydrangea, the first thing to do is to remain calm. Stress and hustle and bustle fuel the anxiety of those affected, which can intensify the symptoms. If you have mild symptoms, you can first call the poison control center, which can quickly answer your first questions and advise you. However, even with mild symptoms, it is advisable to consult a doctor afterwards. In the event of severe symptoms or even shortness of breath, an ambulance should be called in any case.

If you have decided to do it anyway, one planting hydrangea, you can find all the information here.