Nodding Pink Onion Plants poisonous to dogs that you should not keep in your house. There's a lot to love about the towering perennial, Macleaya aka 'plume poppy' the giant silver blue foliage, the clouds of salmon blooms, tolerance of dry and frost. It's a wonderful 10 Non Toxic House Plants Safe For Cats (and Dogs!) Back to the Roots Cardamine pratensis L, lady's smock flowering plant. 25497352 Stock Photo at Vecteezy