Rochester Common household plants toxic to pets. Plant #5: Philodendrons Philodendrons are considered toxic to both dogs and cats. Any amount of consumption is said to cause severe irritation in Philodendron 'Split Leaf' Pooler Plant Pick Up Station Pink pineapples now exist and they're quite the peculiar sight Philodendron stenolobum Seedling Gabriella Plants Why THESE turning yellow? , Your Pothos is trying to tell you something!, 3 most common reasons:, 1 Overwatering most common cause, 2 Too much direct sun, 3 Old leaves dying completely Ponytail Palm