Moon tree

Seeds for the experiment were chosen from five species of tree: loblolly pine, sycamore, sweetgum, redwood, and Douglas fir.

Most of the Moon trees were given away in 1975 and 1976 to state forestry organizations, in order to be planted as part of the nation's bicentennial celebration.

Upon doing some research, Williams found some old newspaper clippings that described the initial actions taken by Roosa to bring these seeds to space and home to be planted.

In 2011, an article in Wired magazine described the effort, and provided Williams' email address, encouraging anyone to write who might have data on existing Moon trees.

[8] In March 2021, the Royal Astronomical Society and the UK Space Agency asked for the help of the public to identify up to 15 Moon Trees that may be growing in the United Kingdom.