‘植树节’ literally means ‘tree-planting festival’ — 植 (zhí) means ‘to plant’, 树 (shù) means ‘tree’, and 节 (jié) means ‘festival’ or ‘commemorative day’. It is China’s official Arbor Day, observed annually on March 12 to promote environmental awareness and encourage citizens — especially students and community groups — to participate in afforestation efforts. Established in 1979, the holiday honors Dr. Sun Yat-sen’s advocacy for forestry and reflects national commitments to ecological sustainability.

While not a public holiday with time off work, 植树节 is widely celebrated through school activities, volunteer tree-planting events in parks and rural areas, and media campaigns highlighting green development. It carries strong civic and educational connotations, often linked with themes of responsibility, renewal, and long-term environmental stewardship. The term appears in news reports, government announcements, and school curricula — always capitalized in Chinese when referring to the official observance.