Tree Day (Brazil)
21 September 2026 — Plant a tree today, and the sky will give you a wink!
Tree Day (Dia da Árvore) is marked in Brazil on 21 September. It reminds people how important forests are and encourages tree planting, often in schools, parks and gardens. The date falls around the start of spring in the Southern Hemisphere, when nature wakes up and it is a good time to plant. The day is often associated with the pau-brasil (brazilwood), from which the country takes its name. Its wood once yielded a red dye and was highly prized in the colonial period, and the tree was heavily logged. Today the species is protected and is Brazil’s national tree. The day is a reminder that caring for trees means caring for air, water and wildlife, toucans included. The sky connection is seasonal: the September equinox, when day and night are almost equal, falls close to this date and marks the arrival of spring in the Southern Hemisphere.
Flying across the sky: An ethereal, bluish-silver figure of a graceful tree drawn from bright points and thin lines like a constellation, with a small toucan made of stars perched on one branch
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