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"Season's Greenings" holiday exhibit 2024

Our popular annual holiday display “Season’s Greenings” features model trains in the gated outdoor gardens, festive lights throughout the Garden, thousands of poinsettias, holiday decor, and D.C. landmarks made from plants inside the Conservatory. On the lawn in the gated outdoor gardens, G-gauge model trains circulate from 10:00-5:00 daily through displays of pollinators made from plant parts. These scenes range from oversized models of native U.S. flowers like milkweed 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! The Garden will be closed on December 25.
Location: Outdoor Gardens
a sculpture made from plant parts shows a green-blue bee landing on a yellow vanilla orchid flower

Heat Zones, Plant Health, and the AHS Heat Zone Map

With tools like the USDA plant hardiness map, we typically only consider low winter temperatures as the primary metric by which we determine which plants to sow. However, we might benefit from incorporating summer temperature trends, like the information presented in the American Horticultural Society’s heat zone map, into our planting decisions. With summer temperatures spiking to record highs due to a changing climate, the impact of high heat on plant life is becoming increasingly relevant to growers.
U.S. map showing colored heat zones

U.S. Botanic Garden summer exhibit spotlights four local organizations enriching communities through plants

In a special outdoor summer exhibit, the U.S. Botanic Garden is spotlighting four local organizations enriching their communities through plants, urban agriculture, and food growing. From June to October 2024, “Cultivate: Growing Food in Urban Gardens” shares the stories of a diverse tapestry of urban agriculture through local gardens and greenspaces supported by Washington D.C. community groups through special outdoor installations on the USBG Terrace. Organizations showcased include Building Bridges Across the River, City Blossoms, The Green Scheme, and Washington Parks & People.
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"Season's Greenings" holiday exhibit 2022

The U.S. Botanic Garden (USBG) offered a garden-wide “Season’s Greenings” holiday display in 2022, running from Thursday, Nov. 24, through Monday, Jan. 2, 2023, closed Dec. 25. As part of the festivities, G-gauge model trains ran between 10:00 a.m. and 5:00 p.m. each day in the gated outdoor gardens and the Conservatory featured poinsettias, holiday decor, and D.C. landmarks made from plants.
Location: Outdoor Gardens

Outdoor Gardens

The gated outdoor gardens, opened in 2006, feature the Regional Garden of Mid-Atlantic native plants, the Rose Garden devoted to the U.S. national flower, the Pollinator Garden, and the First Ladies Water Garden.

Native Plant Recommendations

Explore lists of plants from our Regional Garden of Mid-Atlantic native plants for you to try in your own garden.

Gardens & Plants

Any time of year, you'll see something beautiful in bloom at the U.S. Botanic Garden Conservatory, outdoor gardens, and Bartholdi Fountain and Gardens!
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Outdoor Holiday Display 2021

The U.S. Botanic Garden featured an outdoor holiday display in 2021 with festive adornments, lighted trees and shrubs, and an outdoor train display throughout the outdoor gardens.
Location: Outdoor Gardens

Butterflies in the Garden

To attract a diversity of butterflies and other pollinators in your garden, select a variety of plants with different floral colors, shapes, sizes, and bloom times.