Why it is dangerous to dogs
Oleander contains substances that act on the heart: they can throw the heart rhythm out of step. Every part of the plant is poisonous – the leaves, the flowers, the stems and the seeds, even when dried. In Lithuania oleanders are grown in pots: in summer they stand on terraces and balconies, and in winter they are brought indoors.
The amount that causes harm differs from dog to dog and cannot be judged at home. Vomiting and diarrhoea can come first, while problems with the heart sometimes only show later.
If your dog may have chewed oleander, contact a vet or an emergency clinic straight away, even if it seems well. Tell them when it could have happened, and take a photo or a piece of the plant with you.
What to watch out for
- Vomiting, diarrhoea and drooling can follow.
- The heart rhythm can be disturbed: the dog becomes weak or collapses.
- Fallen and dried leaves stay poisonous, so whatever has dropped onto the floor or the terrace is dangerous too.
Which parts are dangerous
Not every part of the plant is equally dangerous.
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Leaves and flowers
DangerousThey are poisonous at all times, whether or not the plant is in flower.
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Fallen dried leaves
DangerousThey do not lose their poison as they dry.
What it can cause
Signs that can appear after eating it. Each page explains what to look out for and when to hurry to a vet.
Safe plants instead
Plants that are safer to keep.