(DC) (US Botanic Garden) The annual holiday display “Season’s Greenings” will feature model trains in the gated outdoor gardens, festive lights throughout the Garden, and the Conservatory will feature poinsettias, holiday decor, and D.C. landmarks made from plants. G-gauge model trains will circulate through displays of pollinators made from plant parts in the outdoor gardens. These scenes will range from oversized models of native U.S. flowers, butterflies, bats, and hummingbirds to an orchid bee pollinating a vanilla orchid flower, a chocolate midge pollinating a cacao flower, a lemur pollinating a traveler’s tree flower, and more!

On three Thursdays in December — Dec. 14, Dec. 21, and Dec. 28 — the Conservatory and outdoor train display will have extended hours, staying open until 8:00 p.m. There will be live holiday music during these evenings. Closed on December 25.