ASPCA lists poinsettia as mildly toxic and calls the reputation over-rated. Lilies are the plant that matters.
Mildly toxic, and badly over-reported. ASPCA lists poinsettia for cats but describes the effects as generally over-rated. The irritant sap causes mild mouth and stomach upset.
The plant that deserves the fear in a December living room is the lily, not this one.
Poinsettia stems and leaves release a milky latex sap when broken. It irritates the mouth and stomach lining on contact, which produces drooling and sometimes vomiting.
Signs are usually mild and self-limiting. Skin contact can leave redness or itching. Most cats stop chewing quickly because the sap is unpleasant.
Poinsettia has carried a reputation as a lethal houseplant for a century, largely on the strength of a single much-repeated anecdote. The toxicological record does not support it.
That matters in both directions. Owners panic over the wrong plant, and the panic uses up the attention that belongs to lilies sitting in the same room.
True lilies cause acute kidney failure in cats. Pollen on a coat, or water from the vase, has been enough. Holiday bouquets carry them routinely.
Holly and mistletoe both produce more significant gastrointestinal signs than poinsettia. Tulip and amaryllis bulbs are worth keeping off accessible surfaces too.
See whether lilies are toxic to cats and whether tulips are toxic to cats.
Mildly. ASPCA lists poinsettia as toxic but describes the effects as generally over-rated. The milky sap irritates the mouth and stomach and usually causes mild, self-limiting signs.
The reputation is far worse than the record. ASPCA characterises poinsettia toxicity as mild, and serious outcomes are not what the literature describes.
Drooling, vomiting, and occasionally diarrhoea from the irritant sap. Skin contact can cause redness or itching.
Call if the cat is drooling heavily, vomiting repeatedly, or will not eat. Mild usually is not the same as mild always, and your cat’s history matters.
Lilies are the serious one, and they appear in holiday bouquets. Holly and mistletoe cause more significant gastrointestinal signs than poinsettia does.
Height rarely works with cats. A different room with the door shut is more reliable than a high shelf.
Reader notes are not veterinary advice. If an animal is unwell, call the veterinarian who sees them.
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