Arbor Day Apr. 24, 2026

Arbor Day

Arbor Day celebrates the quiet power of trees—the way they steady ecosystems, shelter wildlife, cool cities and shape the environments we rely on every day. Observed in the United States on the last Friday in April, the day encourages communities there—and in many other countries, where dates vary with the growing season—to plant, protect and care for forests of every kind.

© Mary Liz Austin/Alamy

palette

Today in History

Hiding in the woods
Apr. 24, 2024The white trilliums in Ontario, Canada
Apr. 24, 2025Spire Cove in Kenai Fjords National Park, Seward, Alaska, United States

More Desktop Wallpapers:

Jan. 10, 2025Abraham Lake, Alberta
This clever bird passes with flying colours
Jan. 18, 2026White Sands National Park, New Mexico, United States
Mar. 4, 2025Happy Fat Tuesday!
Aug. 6, 2024Molokini crater, Maui, Hawaii, USA
Feb. 6, 2024Lake Tahoe
Sep. 25, 2024Sequoia National Park, California, USA
A modern recreation
Feb. 7, 2026Salar de Uyuni salt flats in Bolivia
Mar. 27, 2025World Theatre Day
May 25, 2025Butchart Gardens in Brentwood Bay, British Columbia
Dec. 4, 2023Masai Mara National Reserve, Kenya
Dec. 21, 2023December solstice
Oct. 22, 2024Palazzo Zuccari, Rome
Sep. 13, 2024Point Reyes National Seashore, California, USA
May 10, 2024Canadian Tulip Festival
Nov. 3, 2024International Day for Biosphere Reserves
Apr. 16, 2026Blooming lupines in Newfoundland
Mar. 22, 2025Happy World Water Day!
Jul. 25, 2025Colourful houses of Las Palmas de Gran Canaria, Spain
Oct. 25, 2025Martimoaapa Mire Reserve, Finland
Jan. 22, 2026Karlovy Vary, Bohemia, Czechia
Jan. 7, 2024Devils Marbles Conservation Reserve, Australia
Mar. 5, 2024Bangkok, Thailand
Feb. 27, 2024International Polar Bear Day
An island park for everyone
Tis the season for travel
Were halfway there
Apr. 12, 2025International Day of Human Space Flight
Jan. 31, 2024International Zebra Day