Toxic flowers must never be kept indoors, every plant lover needs to know this

Hydrangea. Hydrangeas contain a small amount of cyanide. If ingested in large quantities (even a small amount will cause vomiting), it can be fatal. Generally, young children and kittens and puppies are more curious and will chew on them, so they absolutely must not be allowed to touch them. For adults there is not much danger, but if the flowers or leaves are accidentally eaten, it will cause vomiting, diarrhea and even a state of coma

Oleander. The fragrance of oleander flowers is very captivating, and the colors are very vivid, but the flowers, leaves, roots and stems of oleander are all toxic, and they must never be eaten by mistake. Even the wood of oleander is toxic when burned, and smelling it too much will make people feel uncomfortable. Symptoms of poisoning from accidental ingestion include dehydration, fever and a slow heartbeat. It is generally planted in parks and along riversides

Calla lily. Not all varieties of calla lily are toxic, only a few. If eaten by mistake, poisoning can occur. The toxicity of the calla lily is in the tubers, the spathe and the spadix. Chewing a small piece of the tuber can cause swelling and pain of the tongue and throat, and eating too much by mistake can cause coma. So generally no one would eat it, unless they really have nothing better to do. Normal people do not need to worry