National Tree Planting Day in Lesotho

World Sparrow Day on March 20;

World Planting Day on March 21;

Arbor Day in Portugal on March 21;

Ministry of Environment and Natural Resources Day in Azerbaijan on March 23;

Uganda National Tree Planting Day on March 24;

Crane Day in Sweden on March 25 (Swedish Trandagen);

Fossil Fools Day in United States and Canada on April 1 (For those environmentally-minded pranksters out there, Fossil Fools Day is a strange mix of April Fools' day and Earth Day and it takes place each year on April 1. It began in 2004 in the United States and Canada to hold coordinated action against the not-so-funny use of fossil fuels to derive energy);

National Garden Month in USA on April 1;