(DC) (US Botanic Garden) Join us outside of public hours for a sensory-friendly morning at our annual “Season’s Greenings” holiday exhibit! Explore model trains in the gated outdoor gardens circulating through large models of pollinators made from plant parts, as well as poinsettias and D.C. landmarks made from plants inside the Conservatory. These pollinator scenes include sculptures of a bat pollinating a banana flower, an orchid bee pollinating a vanilla orchid flower, a chocolate midge pollinating a cacao flower, and more!