Winter means more indoor plants , but many are toxic to dogs. Avoid lilies, azaleas, oleander, sago palms, and poinsettias. Symptoms of poisoning include vomiting, diarrhea, lethargy, or difficulty breathing. Keep plants Philodendron hederaceum 'Brasil' Gabriella Plants Ficus Tineke Tree Form Single Stem, Variegated Elastica Rubber Tree Decora Not all greenery is as harmless as it looks! From common houseplants to spring garden favorites, many can cause anything from mild stomach upset to more serious reactions in dogs. And if The world's biggest spider lair news.com.au Australia's leading news site for latest headlines Amazon.com : Philodendron Fertilizer Liquid Plant Food for Bigger Leaves, Lush Foliage & Steady New Growth, 8 oz : Patio, Lawn & Garden