In general, Hydrangea can be kept in the living room. However, to ensure a better ventilation, because it is toxic, and the living room is not ventilated, for the growth of Hydrangea is also very bad. If possible, it's best to keep it in the open air.
It should be noted that when breeding in the living room, the family should be informed in advance that this is a kind of poisonous flower and should not be touched at will. Especially in families with children, we should be more careful not to eat by mistake.
Although its stem position, leaves and flowers are all poisonous, but it's not transmitted through the air, so its taste is not poisonous. As long as you don't touch the plants with your body, you won't do harm to your body.
Plants like to grow in a ventilated and well lit place, so if you want to breed in the living room, the maintenance position should have good light and good ventilation.