US Apollo Astronauts Stafford, Slayton, Brand with Soviet Soyuz 19 Cosmonauts Leonov and Kubasov plant trees during the visit of Apollo team in Star City
All crew who fly on board of Soyuz Spacecraft to the ISS participate in the cermony of Tree Planting outside The Cosmonaut Hotel of Cosmodrome Baikonur
In 2011 in the honor 50 year anniversary of Yuri Gagarin's flight Cosmonaut Alley was founded in the park next to the Monument of Yuri Gagarin. 12 Soviet-Russian Cosmonauts participated in tree planting.
On September 14, 2018 an Alley of Cosmonauts has been planted in the Botanical Garden of the National Academy of Sciences of Belarus.
After the completion of Soyuz TMA-21 flight to the ISS, Cosmonaut Alexander Samokutyaev visited Willow Elementary School planting trees with students.
West Hills house garden had several orange trees planted by visiting cosmonauts Krikalyov, Poleschuk, Savinykh and Samokutyaev,