"Kalmia polifolia" flowers in April and is pollinated by bees. Every part of "Kalmia polifolia" is highly toxic and poisonous to animals and persons. "Kalmia polifolia" can grow to be two feet tall. According to Lewis and Elvin-Lewis, the active compounds within "Kalmia polifolia" include andromedotoxin and arbutin. "Kalmia polifolia" was planted in Montreal's First Nation Garden, among another 300 species planted. Labrador tea ("Ledum groenlandicum"), bog laurel ("Kalmia polifolia"), and American cranberry bushes ("Vaccinium macrocarpon").