Vilso Cembranel tends to the moon tree he saved from the brink of death. (Credit: Andrew Jenner) On a warm, windy August day in 1981, a crowd gathered at the fairgrounds in Santa Rosa for the final event of the soybean fair that’s held every other year in the small city in southern Brazil. Schools had let out so local students could attend, along with curious fairgoers and a collection of bigwigs whose rank rose all the way up to João Figueiredo, then the president of Brazil. Speeches were made, the national anthem played, and then, around 1 p.m., a small tree was planted to symbolize a new ecological consciousness that was stirring in the heart of Brazilian farm country. “The moment the tree was planted, all the city’s church bells started ringing,” recalls Nilso Guidolin, president of the 1981 soybean fair. “It was a joyful moment.” And it was a very special tree: a Sequoia sempervirens, or California redwood, grown from a seed that had traveled to the moon. After being planted with much fanfare, this symbolic tree was forgotten, neglected and abused over the following years. It almost died. It needed a hero.