Residents of St Pierre du Bois marked BBC Tree o'clock by planting more than 100 trees at the parish's rectory walk.
Tree o'clock was an initiative organised as part of National Tree Week by the BBC and aimed to break the world record for trees planted in an hour.
130 people turned out to the secluded spot in St Peter's to help out.
Amongst the people were many pupils from La Houguette Primary School and several people evacuated from Guernsey during the Second World War.
The evacuees planted special oak trees to act as a reminder of what they and the entire population of Guernsey went through during the first half of the 1940s.
130 people turned out to help plant trees in St Peters
Ron Galliene said: "It's a lovely, long lasting thing to do. As an evacuee I appreciate things like this being done."
Ron planted his oak with help from his granddaughter, which was a good example of how the initiative spanned generations.
She said: "It was quite fun planting with my grandpa and spending some time together."
The Bailiff, Sir Geoffrey Rowland, also planted a tree and said: "It's a marvellous initiative... with a global problem like climate change we've got to play our part and St Peter in the Wood are doing it for us."
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